My App Store keeps crashing and giving me a huge error report

Question

Here is the report
Process:         App Store [24741]
Path:            /Applications/App Store.app/Contents/MacOS/App Store
Identifier:      com.apple.appstore
Version:         1.0.2 (63.1)
Build Info:      Firenze-630100~1
Code Type:       X86-64 (Native)
Parent Process:  launchd [22022]
Date/Time:       2013-07-13 22:19:51.950 +1000
OS Version:      Mac OS X 10.6.8 (10K549)
Report Version:  6
Sleep/Wake UUID: 3CFB8202-91FC-420D-97E1-C5EBAF3826B7
Interval Since Last Report:          58278 sec
Crashes Since Last Report:           11
Per-App Interval Since Last Report:  12 sec
Per-App Crashes Since Last Report:   8
Anonymous UUID:                      9FF206D4-FD94-4E99-B16D-7A9CC66694CD
Exception Type:  EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Crashed Thread:  0  Dispatch queue: com.apple.main-thread
Application Specific Information:
abort() called
*** Terminating app due to uncaught exception 'NSImageCacheException', reason: 'Cannot lock focus on image <NSImage 0x1003bf790 Size={0, 0} Reps=(
)>, because it is size zero.'
*** Call stack at first throw:
          0   CoreFoundation                      0x00007fff89bf0784 __exceptionPreprocess + 180
          1   libobjc.A.dylib                     0x00007fff864b4f03 objc_exception_throw + 45
          2   CoreFoundation                      0x00007fff89bf05a7 +[NSException raise:format:arguments:] + 103
          3   CoreFoundation                      0x00007fff89bf0534 +[NSException raise:format:] + 148
          4   AppKit                              0x00007fff805329cc -[NSImage _lockFocusOnRepresentation:rect:context:hints:flipped:] + 319
          5   AppKit                              0x00007fff80532883 __-[NSImage lockFocusWithRect:context:hints:flipped:]_block_invoke_1 + 100
          6   AppKit                              0x00007fff804c6c1d -[NSImage _usingBestRepresentationForRect:context:hints:body:] + 178
          7   AppKit                              0x00007fff80532809 -[NSImage lockFocusWithRect:context:hints:flipped:] + 289
          8   AppKit                              0x00007fff805326d3 -[NSImage lockFocusFlipped:] + 142
          9   App Store                           0x000000010001c840 0x0 + 4295084096
          10  AppKit                              0x00007fff804bb444 -[NSControl drawRect:] + 405
          11  AppKit                              0x00007fff804b3cc5 -[NSView _drawRect:clip:] + 3390
          12  AppKit                              0x00007fff804b2938 -[NSView _recursiveDisplayAllDirtyWithLockFocus:visRect:] + 1325
          13  AppKit                              0x00007fff804b2ca2 -[NSView _recursiveDisplayAllDirtyWithLockFocus:visRect:] + 2199
          14  AppKit                              0x00007fff804b2ca2 -[NSView _recursiveDisplayAllDirtyWithLockFocus:visRect:] + 2199
          15  AppKit                              0x00007fff804d7c5a -[NSToolbarItemViewer _recursiveDisplayAllDirtyWithLockFocus:visRect:] + 301
          16  AppKit                              0x00007fff804b2ca2 -[NSView _recursiveDisplayAllDirtyWithLockFocus:visRect:] + 2199
          17  AppKit                              0x00007fff804b2ca2 -[NSView _recursiveDisplayAllDirtyWithLockFocus:visRect:] + 2199
          18  AppKit                              0x00007fff804b2ca2 -[NSView _recursiveDisplayAllDirtyWithLockFocus:visRect:] + 2199
          19  AppKit                              0x00007fff804b100a -[NSView _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectFor View:topView:] + 767
          20  AppKit                              0x00007fff804b0b2c -[NSThemeFrame _recursiveDisplayRectIfNeededIgnoringOpacity:isVisibleRect:rectIsVisibleRectFor View:topView:] + 254
          21  AppKit                              0x00007fff804ad3de -[NSView _displayRectIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:] + 2683
          22  AppKit                              0x00007fff80426c0e -[NSView displayIfNeeded] + 969
          23  AppKit                              0x00007fff803eec3b -[NSWindow _reallyDoOrderWindow:relativeTo:findKey:forCounter:force:isModal:] + 1050
          24  AppKit                              0x00007fff803ee7d2 -[NSWindow orderWindow:relativeTo:] + 94
          25  AppKit                              0x00007fff803ba974 -[NSIBObjectData nibInstantiateWithOwner:topLevelObjects:] + 1726
          26  AppKit                              0x00007fff803b8a91 loadNib + 226
          27  AppKit                              0x00007fff803b81a4 +[NSBundle(NSNibLoading) _loadNibFile:nameTable:withZone:ownerBundle:] + 763
          28  AppKit                              0x00007fff803b7dd9 +[NSBundle(NSNibLoading) loadNibNamed:owner:] + 326
          29  AppKit                              0x00007fff803b535b NSApplicationMain + 279
          30  App Store                           0x00000001000013f4 0x0 + 4294972404
          31  ???                                 0x0000000000000002 0x0 + 2
Thread 0 Crashed:  Dispatch queue: com.apple.main-thread
0   libSystem.B.dylib                       0x00007fff895750b6 __kill + 10
1   libSystem.B.dylib                       0x00007fff896159f6 abort + 83
2   libstdc++.6.dylib                       0x00007fff8343d5d2 __tcf_0 + 0
3   libobjc.A.dylib                         0x00007fff864b8b39 _objc_terminate + 100
4   libstdc++.6.dylib                       0x00007fff8343bae1 __cxxabiv1::__terminate(void (*)()) + 11
5   libstdc++.6.dylib                       0x00007fff8343bb16 __cxxabiv1::__unexpected(void (*)()) + 0
6   libstdc++.6.dylib                       0x00007fff8343bbfc __gxx_exception_cleanup(_Unwind_Reason_Code, _Unwind_Exception*) + 0
7   libobjc.A.dylib                         0x00007fff864b4fa2 object_getIvar + 0
8   com.apple.CoreFoundation                0x00007fff89c48969 -[NSException raise] + 9
9   com.apple.AppKit                        0x00007fff804ad924 -[NSView _displayRectIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:] + 4033
10  com.apple.AppKit                        0x00007fff80426c0e -[NSView displayIfNeeded] + 969
11  com.apple.AppKit                        0x00007fff803eec3b -[NSWindow _reallyDoOrderWindow:relativeTo:findKey:forCounter:force:isModal:] + 1050
12  com.apple.AppKit                        0x00007fff803ee7d2 -[NSWindow orderWindow:relativeTo:] + 94
13  com.apple.AppKit                        0x00007fff803ba974 -[NSIBObjectData nibInstantiateWithOwner:topLevelObjects:] + 1726
14  com.apple.AppKit                        0x00007fff803b8a91 loadNib + 226
15  com.apple.AppKit                        0x00007fff803b81a4 +[NSBundle(NSNibLoading) _loadNibFile:nameTable:withZone:ownerBundle:] + 763
16  com.apple.AppKit                        0x00007fff803b7dd9 +[NSBundle(NSNibLoading) loadNibNamed:owner:] + 326
17  com.apple.AppKit                        0x00007fff803b535b NSApplicationMain + 279
18  com.apple.appstore                      0x00000001000013f4 0x100000000 + 5108
Thread 1:  Dispatch queue: com.apple.libdispatch-manager
0   libSystem.B.dylib                       0x00007fff8953fc0a kevent + 10
1   libSystem.B.dylib                       0x00007fff89541add _dispatch_mgr_invoke + 154
2   libSystem.B.dylib                       0x00007fff895417b4 _dispatch_queue_invoke + 185
3   libSystem.B.dylib                       0x00007fff895412de _dispatch_worker_thread2 + 252
4   libSystem.B.dylib                       0x00007fff89540c08 _pthread_wqthread + 353
5   libSystem.B.dylib                       0x00007fff89540aa5 start_wqthread + 13
Thread 2:
0   libSystem.B.dylib                       0x00007fff89540a2a __workq_kernreturn + 10
1   libSystem.B.dylib                       0x00007fff89540e3c _pthread_wqthread + 917
2   libSystem.B.dylib                       0x00007fff89540aa5 start_wqthread + 13
Thread 3:  WebCore: LocalStorage
0   libSystem.B.dylib                       0x00007fff89561a6a __semwait_signal + 10
1   libSystem.B.dylib                       0x00007fff89565881 _pthread_cond_wait + 1286
2   com.apple.JavaScriptCore                0x00007fff85cdf3b0 ***::ThreadCondition::timedWait(***::Mutex&, double) + 64
3   com.apple.WebCore                       0x00007fff8194ff81 WebCore::LocalStorageThread::threadEntryPoint() + 177
4   libSystem.B.dylib                       0x00007fff8955ffd6 _pthread_start + 331
5   libSystem.B.dylib                       0x00007fff8955fe89 thread_start + 13
Thread 4:
0   libSystem.B.dylib                       0x00007fff89526d7a mach_msg_trap + 10
1   libSystem.B.dylib                       0x00007fff895273ed mach_msg + 59
2   com.apple.CoreFoundation                0x00007fff89b8b902 __CFRunLoopRun + 1698
3   com.apple.CoreFoundation                0x00007fff89b8ad8f CFRunLoopRunSpecific + 575
4   com.apple.Foundation                    0x00007fff8660a14f +[NSURLConnection(NSURLConnectionReallyInternal) _resourceLoadLoop:] + 297
5   com.apple.Foundation                    0x00007fff8658b114 __NSThread__main__ + 1429
6   libSystem.B.dylib                       0x00007fff8955ffd6 _pthread_start + 331
7   libSystem.B.dylib                       0x00007fff8955fe89 thread_start + 13
Thread 5:
0   libSystem.B.dylib                       0x00007fff89540a2a __workq_kernreturn + 10
1   libSystem.B.dylib                       0x00007fff89540e3c _pthread_wqthread + 917
2   libSystem.B.dylib                       0x00007fff89540aa5 start_wqthread + 13
Thread 0 crashed with X86 Thread State (64-bit):
  rax: 0x0000000000000000  rbx: 0x00007fff70ffa2f8  rcx: 0x00007fff5fbff308  rdx: 0x0000000000000000
  rdi: 0x00000000000060a5  rsi: 0x0000000000000006  rbp: 0x00007fff5fbff320  rsp: 0x00007fff5fbff308
   r8: 0x00007fff70ffda60   r9: 0x0000000000000063  r10: 0x00007fff895710fa  r11: 0x0000000000000202
  r12: 0x00007fff89c75b09  r13: 0x0000000000000000  r14: 0x000000010061bd50  r15: 0x00007fff700bc190
  rip: 0x00007fff895750b6  rfl: 0x0000000000000202  cr2: 0x00007fff70583fd0
Binary Images:
       0x100000000 -        0x100044fff  com.apple.appstore 1.0.2 (63.1) <9113B2F3-EC62-24EA-C21A-352621712604> /Applications/App Store.app/Contents/MacOS/App Store
       0x100065000 -        0x10018eff7  com.apple.CommerceKit 1.0 (60.8) <F3B830C2-00E3-FE72-2D65-FDC943EC65EF> /System/Library/PrivateFrameworks/CommerceKit.framework/Versions/A/CommerceKit
    0x7fff5fc00000 -     0x7fff5fc3bdef  dyld 132.1 (???) <B536F2F1-9DF1-3B6C-1C2C-9075EA219A06> /usr/lib/dyld
    0x7fff80003000 -     0x7fff80005fff  libRadiance.dylib ??? (???) <BF694EE5-6FDA-553A-CC89-F7135618E9C7> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ImageIO.framework/Versions/A/Resources/libRadiance.dylib
    0x7fff80006000 -     0x7fff80027fe7  libPng.dylib ??? (???) <D8EC7740-EE32-865A-2F75-C9EDE2135510> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ImageIO.framework/Versions/A/Resources/libPng.dylib
    0x7fff80028000 -     0x7fff80077ff7  com.apple.DirectoryService.PasswordServerFramework 6.1 (6.1) <01B370FB-D524-F660-3826-E85B7F0D85CD> /System/Library/PrivateFrameworks/PasswordServer.framework/Versions/A/PasswordS erver
    0x7fff80087000 -     0x7fff8009efff  com.apple.ImageCapture 6.1 (6.1) <79AB2131-2A6C-F351-38A9-ED58B25534FD> /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/ImageCapture. framework/Versions/A/ImageCapture
    0x7fff800cf000 -     0x7fff801cffef  com.apple.DiskImagesFramework 10.6.8 (289.1) <4F2F2B6C-59D1-0631-71D1-F471BE2CE29A> /System/Library/PrivateFrameworks/DiskImages.framework/Versions/A/DiskImages
    0x7fff8021b000 -     0x7fff80331ff7  libxml2.2.dylib 10.3.0 (compatibility 10.0.0) <3814FCF9-92B9-A6AB-E76A-F7021894AA3F> /usr/lib/libxml2.2.dylib
    0x7fff803b2000 -     0x7fff803b2ff7  com.apple.vecLib 3.6 (vecLib 3.6) <08D3D45D-908B-B86A-00BA-0F978D2702A7> /System/Library/Frameworks/vecLib.framework/Versions/A/vecLib
    0x7fff803b3000 -     0x7fff80dadff7  com.apple.AppKit 6.6.8 (1038.36) <4CFBE04C-8FB3-B0EA-8DDB-7E7D10E9D251> /System/Library/Frameworks/AppKit.framework/Versions/C/AppKit
    0x7fff80dae000 -     0x7fff80e2dfe7  com.apple.audio.CoreAudio 3.2.6 (3.2.6) <79E256EB-43F1-C7AA-6436-124A4FFB02D0> /System/Library/Frameworks/CoreAudio.framework/Versions/A/CoreAudio
    0x7fff80e3a000 -     0x7fff80e7bfff  com.apple.SystemConfiguration 1.10.8 (1.10.2) <78D48D27-A9C4-62CA-2803-D0BBED82855A> /System/Library/Frameworks/SystemConfiguration.framework/Versions/A/SystemConfi guration
    0x7fff80e7c000 -     0x7fff81219fe7  com.apple.QuartzCore 1.6.3 (227.37) <16DFF6CD-EA58-CE62-A1D7-5F6CE3D066DD> /System/Library/Frameworks/QuartzCore.framework/Versions/A/QuartzCore
    0x7fff8121a000 -     0x7fff81334fff  libGLProgrammability.dylib ??? (???) <D1650AED-02EF-EFB3-100E-064C7F018745> /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGLProgramma bility.dylib
    0x7fff81335000 -     0x7fff81366fff  libGLImage.dylib ??? (???) <562565E1-AA65-FE96-13FF-437410C886D0> /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGLImage.dyl ib
    0x7fff81367000 -     0x7fff81387fff  com.apple.DirectoryService.Framework 3.6 (621.16) <0ED4A74A-F8FB-366D-6588-F13EA397326F> /System/Library/Frameworks/DirectoryService.framework/Versions/A/DirectoryServi ce
    0x7fff81388000 -     0x7fff81396ff7  libkxld.dylib ??? (???) <8145A534-95CC-9F3C-B78B-AC9898F38C6F> /usr/lib/system/libkxld.dylib
    0x7fff81397000 -     0x7fff8139bff7  libCGXType.A.dylib 545.0.0 (compatibility 64.0.0) <DB710299-B4D9-3714-66F7-5D2964DE585B> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ CoreGraphics.framework/Versions/A/Resources/libCGXType.A.dylib
    0x7fff8139c000 -     0x7fff813aefe7  libsasl2.2.dylib 3.15.0 (compatibility 3.0.0) <76B83C8D-8EFE-4467-0F75-275648AFED97> /usr/lib/libsasl2.2.dylib
    0x7fff813af000 -     0x7fff813afff7  com.apple.Accelerate 1.6 (Accelerate 1.6) <2BB7D669-4B40-6A52-ADBD-DA4DB3BC0B1B> /System/Library/Frameworks/Accelerate.framework/Versions/A/Accelerate
    0x7fff814f9000 -     0x7fff81541ff7  libvDSP.dylib 268.0.1 (compatibility 1.0.0) <170DE04F-89AB-E295-0880-D69CAFBD7979> /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.fr amework/Versions/A/libvDSP.dylib
    0x7fff81542000 -     0x7fff81585ff7  libRIP.A.dylib 545.0.0 (compatibility 64.0.0) <5FF3D7FD-84D8-C5FA-D640-90BB82EC651D> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ CoreGraphics.framework/Versions/A/Resources/libRIP.A.dylib
    0x7fff816e7000 -     0x7fff816f4fe7  libCSync.A.dylib 545.0.0 (compatibility 64.0.0) <1C35FA50-9C70-48DC-9E8D-2054F7A266B1> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ CoreGraphics.framework/Versions/A/Resources/libCSync.A.dylib
    0x7fff816f5000 -     0x7fff816f5ff7  com.apple.Carbon 150 (152) <19B37B7B-1594-AD0A-7F14-FA2F85AD7241> /System/Library/Frameworks/Carbon.framework/Versions/A/Carbon
    0x7fff81787000 -     0x7fff817beff7  com.apple.DiskManagement 3.6 (358) <D0D9E19C-7F01-CEB6-681D-0B20D3B7E9B4> /System/Library/PrivateFrameworks/DiskManagement.framework/Versions/A/DiskManag ement
    0x7fff817e3000 -     0x7fff81824fef  com.apple.QD 3.36 (???) <5DC41E81-32C9-65B2-5528-B33E934D5BB4> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ QD.framework/Versions/A/QD
    0x7fff81825000 -     0x7fff818d5fff  edu.mit.Kerberos 6.5.11 (6.5.11) <085D80F5-C9DC-E252-C21B-03295E660C91> /System/Library/Frameworks/Kerberos.framework/Versions/A/Kerberos
    0x7fff818d6000 -     0x7fff818fefff  com.apple.DictionaryServices 1.1.2 (1.1.2) <E9269069-93FA-2B71-F9BA-FDDD23C4A65E> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/Diction aryServices.framework/Versions/A/DictionaryServices
    0x7fff8192f000 -     0x7fff82999fff  com.apple.WebCore 6534.59 (6534.59.6) <24B753DC-1FD4-FFCC-5F66-44799244A125> /System/Library/Frameworks/WebKit.framework/Versions/A/Frameworks/WebCore.frame work/Versions/A/WebCore
    0x7fff8299a000 -     0x7fff829a0ff7  IOSurface ??? (???) <04EDCEDE-E36F-15F8-DC67-E61E149D2C9A> /System/Library/Frameworks/IOSurface.framework/Versions/A/IOSurface
    0x7fff829a8000 -     0x7fff829affff  com.apple.OpenDirectory 10.6 (10.6) <4200CFB0-DBA1-62B8-7C7C-91446D89551F> /System/Library/Frameworks/OpenDirectory.framework/Versions/A/OpenDirectory
    0x7fff829b0000 -     0x7fff82c39ff7  com.apple.security 6.1.2 (55002) <D224882B-D57B-83AF-3781-548BCEACB327> /System/Library/Frameworks/Security.framework/Versions/A/Security
    0x7fff82c3a000 -     0x7fff82c3dff7  libCoreVMClient.dylib ??? (???) <75819794-3B7A-8944-D004-7EA6DD7CE836> /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libCoreVMClien t.dylib
    0x7fff82d49000 -     0x7fff82d49ff7  com.apple.Cocoa 6.6 (???) <68B0BE46-6E24-C96F-B341-054CF9E8F3B6> /System/Library/Frameworks/Cocoa.framework/Versions/A/Cocoa
    0x7fff82ebc000 -     0x7fff82ee7ff7  libxslt.1.dylib 3.24.0 (compatibility 3.0.0) <3630A97F-55C1-3F34-CA63-3847653C9645> /usr/lib/libxslt.1.dylib
    0x7fff82f2e000 -     0x7fff82feffef  com.apple.ColorSync 4.6.8 (4.6.8) <7DF1D175-6451-51A2-DBBF-40FCA78C0D2C> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ColorSync.framework/Versions/A/ColorSync
    0x7fff83232000 -     0x7fff833f0fff  libicucore.A.dylib 40.0.0 (compatibility 1.0.0) <97A75BFB-0DB6-6F44-36B0-97B7F7208ABB> /usr/lib/libicucore.A.dylib
    0x7fff833f1000 -     0x7fff8346efef  libstdc++.6.dylib 7.9.0 (compatibility 7.0.0) <35ECA411-2C08-FD7D-11B1-1B7A04921A5C> /usr/lib/libstdc++.6.dylib
    0x7fff8347f000 -     0x7fff83538fff  libsqlite3.dylib 9.6.0 (compatibility 9.0.0) <2C5ED312-E646-9ADE-73A9-6199A2A43150> /usr/lib/libsqlite3.dylib
    0x7fff83539000 -     0x7fff8358eff7  com.apple.framework.familycontrols 2.0.2 (2020) <F09541B6-5E28-1C01-C1AE-F6A2508670C7> /System/Library/PrivateFrameworks/FamilyControls.framework/Versions/A/FamilyCon trols
    0x7fff8361f000 -     0x7fff836f7ff7  com.apple.DiscRecording 5.0.9 (5090.4.2) <1559C58F-ABD2-0C13-7E1D-75450FEC41D4> /System/Library/Frameworks/DiscRecording.framework/Versions/A/DiscRecording
    0x7fff83706000 -     0x7fff837c8fe7  libFontParser.dylib ??? (???) <EF06F16C-0CC9-B4CA-7BD9-0A97FA967340> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ATS.framework/Versions/A/Resources/libFontParser.dylib
    0x7fff837c9000 -     0x7fff837fcff7  libTrueTypeScaler.dylib ??? (???) <B7BA8104-FA18-39A2-56E1-922EE7A660AC> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ATS.framework/Versions/A/Resources/libTrueTypeScaler.dylib
    0x7fff837fd000 -     0x7fff8391cff7  libcrypto.0.9.8.dylib 0.9.8 (compatibility 0.9.8) <11EB0132-EC8E-0E2E-9B84-B2DFE65DE678> /usr/lib/libcrypto.0.9.8.dylib
    0x7fff8391d000 -     0x7fff83973fe7  libTIFF.dylib ??? (???) <2DBEC120-DAA7-3789-36A2-A205BCDF2D72> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ImageIO.framework/Versions/A/Resources/libTIFF.dylib
    0x7fff83a82000 -     0x7fff83b37fe7  com.apple.ink.framework 1.3.3 (107) <FFC46EE0-3544-A459-2AB9-94778A75E3D4> /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/Ink.framework /Versions/A/Ink
    0x7fff83b7e000 -     0x7fff83cbcfff  com.apple.CoreData 102.1 (251) <32233D4D-00B7-CE14-C881-6BF19FD05A03> /System/Library/Frameworks/CoreData.framework/Versions/A/CoreData
    0x7fff83cbd000 -     0x7fff83cf7fff  libcups.2.dylib 2.8.0 (compatibility 2.0.0) <4F2A4397-89BD-DEAC-4971-EE838FFA0964> /usr/lib/libcups.2.dylib
    0x7fff83d03000 -     0x7fff843ffff7  com.apple.CoreGraphics 1.545.0 (???) <58D597B1-EB3B-710E-0B8C-EC114D54E11B> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ CoreGraphics.framework/Versions/A/CoreGraphics
    0x7fff84400000 -     0x7fff84400ff7  com.apple.Accelerate.vecLib 3.6 (vecLib 3.6) <DA9BFF01-40DF-EBD5-ABB7-787DAF2D77CF> /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.fr amework/Versions/A/vecLib
    0x7fff84401000 -     0x7fff8443ffe7  libFontRegistry.dylib ??? (???) <395D7C0D-36B5-B353-0DC8-51ABC0B1C030> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ATS.framework/Versions/A/Resources/libFontRegistry.dylib
    0x7fff84440000 -     0x7fff8444bff7  com.apple.bsd.ServiceManagement 1.3 (1.3) <CEB99ECF-4C55-C3DF-EE64-35903BF7B690> /System/Library/Frameworks/ServiceManagement.framework/Versions/A/ServiceManage ment
    0x7fff8444c000 -     0x7fff84581fff  com.apple.audio.toolbox.AudioToolbox 1.6.7 (1.6.7) <F4814A13-E557-59AF-30FF-E62929367933> /System/Library/Frameworks/AudioToolbox.framework/Versions/A/AudioToolbox
    0x7fff845b9000 -     0x7fff84778fff  com.apple.ImageIO.framework 3.0.6 (3.0.6) <92882FD3-CB3F-D0BE-DDDA-43B4BEE10F58> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ImageIO.framework/Versions/A/ImageIO
    0x7fff84779000 -     0x7fff84792fff  com.apple.CFOpenDirectory 10.6 (10.6) <CCF79716-7CC6-2520-C6EB-A4F56AD0A207> /System/Library/Frameworks/OpenDirectory.framework/Versions/A/Frameworks/CFOpen Directory.framework/Versions/A/CFOpenDirectory
    0x7fff84793000 -     0x7fff8479efff  com.apple.CrashReporterSupport 10.6.7 (258) <A2CBB18C-BD1C-8650-9091-7687E780E689> /System/Library/PrivateFrameworks/CrashReporterSupport.framework/Versions/A/Cra shReporterSupport
    0x7fff847a4000 -     0x7fff847a7ff7  com.apple.securityhi 4.0 (36638) <38935851-09E4-DDAB-DB1D-30ADC39F7ED0> /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/SecurityHI.fr amework/Versions/A/SecurityHI
    0x7fff8481d000 -     0x7fff84823ff7  com.apple.DiskArbitration 2.3 (2.3) <857F6E43-1EF4-7D53-351B-10DE0A8F992A> /System/Library/Frameworks/DiskArbitration.framework/Versions/A/DiskArbitration
    0x7fff8505f000 -     0x7fff850a1fe7  com.apple.MediaKit 10.5.1 (490) <9D8D9E51-6559-41A2-E404-C629878F93AA> /System/Library/PrivateFrameworks/MediaKit.framework/Versions/A/MediaKit
    0x7fff850ac000 -     0x7fff85116fe7  libvMisc.dylib 268.0.1 (compatibility 1.0.0) <75A8D840-4ACE-6560-0889-2AFB6BE08E59> /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.fr amework/Versions/A/libvMisc.dylib
    0x7fff85117000 -     0x7fff8516aff7  com.apple.HIServices 1.8.3 (???) <F6E0C7A7-C11D-0096-4DDA-2C77793AA6CD> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ HIServices.framework/Versions/A/HIServices
    0x7fff8516b000 -     0x7fff8516dfff  com.apple.print.framework.Print 6.1 (237.1) <CA8564FB-B366-7413-B12E-9892DA3C6157> /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/Print.framewo rk/Versions/A/Print
    0x7fff8516e000 -     0x7fff8517dfef  com.apple.opengl 1.6.14 (1.6.14) <ECAE2D12-5BE3-46E7-6EE5-563B80B32A3E> /System/Library/Frameworks/OpenGL.framework/Versions/A/OpenGL
    0x7fff8517e000 -     0x7fff85189ff7  com.apple.speech.recognition.framework 3.11.1 (3.11.1) <5CA110A2-0712-F774-E7CF-AA7A2A106DAC> /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/SpeechRecogni tion.framework/Versions/A/SpeechRecognition
    0x7fff851d4000 -     0x7fff851f9ff7  com.apple.CoreVideo 1.6.2 (45.6) <E138C8E7-3CB6-55A9-0A2C-B73FE63EA288> /System/Library/Frameworks/CoreVideo.framework/Versions/A/CoreVideo
    0x7fff851fa000 -     0x7fff851fdfff  com.apple.help 1.3.2 (41.1) <BD1B0A22-1CB8-263E-FF85-5BBFDE3660B9> /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/Help.framewor k/Versions/A/Help
    0x7fff85256000 -     0x7fff85293fff  com.apple.LDAPFramework 2.0 (120.1) <16383FF5-0537-6298-73C9-473AEC9C149C> /System/Library/Frameworks/LDAP.framework/Versions/A/LDAP
    0x7fff85294000 -     0x7fff852d0fe7  libcurl.4.dylib 6.1.0 (compatibility 6.0.0) <0109956D-D962-1736-B510-DC294F530E07> /usr/lib/libcurl.4.dylib
    0x7fff852d1000 -     0x7fff852e5fff  libGL.dylib ??? (???) <2ECE3B0F-39E1-3938-BF27-7205C6D0358B> /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGL.dylib
    0x7fff852e6000 -     0x7fff85332fff  libauto.dylib ??? (???) <F7221B46-DC4F-3153-CE61-7F52C8C293CF> /usr/lib/libauto.dylib
    0x7fff85333000 -     0x7fff853cdfff  com.apple.ApplicationServices.ATS 275.19 (???) <2DE8987F-4563-4D8E-45C3-2F6F786E120D> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ATS.framework/Versions/A/ATS
    0x7fff853ce000 -     0x7fff85812fef  libLAPACK.dylib 219.0.0 (compatibility 1.0.0) <E14EC4C6-B055-A4AC-B971-42AB644E4A7C> /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.fr amework/Versions/A/libLAPACK.dylib
    0x7fff85813000 -     0x7fff8584efff  com.apple.AE 496.5 (496.5) <208DF391-4DE6-81ED-C697-14A2930D1BC6> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/AE.fram ework/Versions/A/AE
    0x7fff8584f000 -     0x7fff85923fe7  com.apple.CFNetwork 454.12.4 (454.12.4) <C83E2BA1-1818-B3E8-5334-860AD21D1C80> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/CFNetwo rk.framework/Versions/A/CFNetwork
    0x7fff85924000 -     0x7fff8596dff7  com.apple.securityinterface 4.0.1 (40418.0.1) <9AF33A9F-2D8C-2AE6-868C-EA836C861031> /System/Library/Frameworks/SecurityInterface.framework/Versions/A/SecurityInter face
    0x7fff85cd5000 -     0x7fff85ff8fe7  com.apple.JavaScriptCore 6534.59 (6534.59.6) <029D160C-5D86-C281-5071-66CA09D1A95F> /System/Library/Frameworks/JavaScriptCore.framework/Versions/A/JavaScriptCore
    0x7fff85ff9000 -     0x7fff86043ff7  com.apple.Metadata 10.6.3 (507.15) <DE238BE4-5E22-C4D5-CF5C-3D50FDEE4701> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/Metadat a.framework/Versions/A/Metadata
    0x7fff86044000 -     0x7fff86049ff7  com.apple.CommonPanels 1.2.4 (91) <4D84803B-BD06-D80E-15AE-EFBE43F93605> /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/CommonPanels. framework/Versions/A/CommonPanels
    0x7fff860d9000 -     0x7fff861b6fff  com.apple.vImage 4.1 (4.1) <C3F44AA9-6F71-0684-2686-D3BBC903F020> /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vImage.fr amework/Versions/A/vImage
    0x7fff861b7000 -     0x7fff861b7ff7  com.apple.ApplicationServices 38 (38) <10A0B9E9-4988-03D4-FC56-DDE231A02C63> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Application Services
    0x7fff8623b000 -     0x7fff8623cff7  com.apple.audio.units.AudioUnit 1.6.7 (1.6.7) <49B723D1-85F8-F86C-2331-F586C56D68AF> /System/Library/Frameworks/AudioUnit.framework/Versions/A/AudioUnit
    0x7fff8623d000 -     0x7fff86296fe7  com.apple.PackageKit 1.1.4 (93) <1FF17E8F-5848-EEB1-78A4-18CBC0D03595> /System/Library/PrivateFrameworks/PackageKit.framework/Versions/A/PackageKit
    0x7fff86297000 -     0x7fff862adfef  libbsm.0.dylib ??? (???) <83676D2E-23CD-45CD-BE5C-35FCFFBBBDBB> /usr/lib/libbsm.0.dylib
    0x7fff86491000 -     0x7fff86495ff7  libmathCommon.A.dylib 315.0.0 (compatibility 1.0.0) <95718673-FEEE-B6ED-B127-BCDBDB60D4E5> /usr/lib/system/libmathCommon.A.dylib
    0x7fff86496000 -     0x7fff864aaff7  com.apple.speech.synthesis.framework 3.10.35 (3.10.35) <63C87CF7-56B3-4038-8136-8C26E96AD42F> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ SpeechSynthesis.framework/Versions/A/SpeechSynthesis
    0x7fff864ab000 -     0x7fff86561ff7  libobjc.A.dylib 227.0.0 (compatibility 1.0.0) <03140531-3B2D-1EBA-DA7F-E12CC8F63969> /usr/lib/libobjc.A.dylib
    0x7fff86562000 -     0x7fff86563ff7  com.apple.TrustEvaluationAgent 1.1 (1) <040B71B1-F8BD-1605-057E-E80DBDE1FE59> /System/Library/PrivateFrameworks/TrustEvaluationAgent.framework/Versions/A/Tru stEvaluationAgent
    0x7fff86564000 -     0x7fff86579ff7  com.apple.LangAnalysis 1.6.6 (1.6.6) <DC999B32-BF41-94C8-0583-27D9AB463E8B> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ LangAnalysis.framework/Versions/A/LangAnalysis
    0x7fff8657a000 -     0x7fff867fcfff  com.apple.Foundation 6.6.8 (751.63) <E10E4DB4-9D5E-54A8-3FB6-2A82426066E4> /System/Library/Frameworks/Foundation.framework/Versions/C/Foundation
    0x7fff86a24000 -     0x7fff86a29fff  libGFXShared.dylib ??? (???) <6BBC351E-40B3-F4EB-2F35-05BDE52AF87E> /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGFXShared.d ylib
    0x7fff86a2c000 -     0x7fff86a66fff  com.apple.bom 10.0 (164) <E5C9AFBD-68C1-197E-72B0-B43295DC87DC> /System/Library/PrivateFrameworks/Bom.framework/Versions/A/Bom
    0x7fff86a67000 -     0x7fff86a76fff  com.apple.NetFS 3.2.2 (3.2.2) <7CCBD70E-BF31-A7A7-DB98-230687773145> /System/Library/Frameworks/NetFS.framework/Versions/A/NetFS
    0x7fff86a77000 -     0x7fff86b17fff  com.apple.LaunchServices 362.3 (362.3) <B90B7C31-FEF8-3C26-BFB3-D8A48BD2C0DA> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/LaunchS ervices.framework/Versions/A/LaunchServices
    0x7fff86b4d000 -     0x7fff86b6efff  libresolv.9.dylib 41.1.0 (compatibility 1.0.0) <9410EC7F-4D24-6740-AFEE-90405750FAD7> /usr/lib/libresolv.9.dylib
    0x7fff86b6f000 -     0x7fff86b8aff7  com.apple.openscripting 1.3.1 (???) <2243C17C-EE36-D5B6-3A3E-8258973FF789> /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/OpenScripting .framework/Versions/A/OpenScripting
    0x7fff86b8b000 -     0x7fff86bebfe7  com.apple.framework.IOKit 2.0 (???) <4F071EF0-8260-01E9-C641-830E582FA416> /System/Library/Frameworks/IOKit.framework/Versions/A/IOKit
    0x7fff86cd5000 -     0x7fff86d92fff  com.apple.CoreServices.OSServices 359.2 (359.2) <BBB8888E-18DE-5D09-3C3A-F4C029EC7886> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/OSServi ces.framework/Versions/A/OSServices
    0x7fff86fab000 -     0x7fff872a9fff  com.apple.HIToolbox 1.6.5 (???) <AD1C18F6-51CB-7E39-35DD-F16B1EB978A8> /System/Library/Frameworks/Carbon.framework/Versions/A/Frameworks/HIToolbox.fra mework/Versions/A/HIToolbox
    0x7fff87d55000 -     0x7fff87d61fff  libbz2.1.0.dylib 1.0.5 (compatibility 1.0.0) <6FB0A8F4-72A1-D28F-E801-DE2C7498AFB9> /usr/lib/libbz2.1.0.dylib
    0x7fff87dc3000 -     0x7fff87e8ffff  com.apple.installframework 596 (596.1) <ED491B89-5D44-533B-5589-622F21EB4D16> /System/Library/PrivateFrameworks/Install.framework/Versions/A/Install
    0x7fff87e90000 -     0x7fff88032fe7  com.apple.WebKit 6534.59 (6534.59.8) <1853A066-5479-6549-3114-91FC2F3FF07A> /System/Library/Frameworks/WebKit.framework/Versions/A/WebKit
    0x7fff880a6000 -     0x7fff88132fef  SecurityFoundation ??? (???) <6860DE26-0D42-D1E8-CD7C-5B42D78C1E1D> /System/Library/Frameworks/SecurityFoundation.framework/Versions/A/SecurityFoun dation
    0x7fff88133000 -     0x7fff88133ff7  com.apple.CoreServices 44 (44) <DC7400FB-851E-7B8A-5BF6-6F50094302FB> /System/Library/Frameworks/CoreServices.framework/Versions/A/CoreServices
    0x7fff8822d000 -     0x7fff8823cfff  libxar.1.dylib ??? (???) <CBAF862A-3C77-6446-56C2-9C4461631AAF> /usr/lib/libxar.1.dylib
    0x7fff882bf000 -     0x7fff882d5fe7  com.apple.MultitouchSupport.framework 207.11 (207.11) <8233CE71-6F8D-8B3C-A0E1-E123F6406163> /System/Library/PrivateFrameworks/MultitouchSupport.framework/Versions/A/Multit ouchSupport
    0x7fff882d6000 -     0x7fff883bbfef  com.apple.DesktopServices 1.5.11 (1.5.11) <39FAA3D2-6863-B5AB-AED9-92D878EA2438> /System/Library/PrivateFrameworks/DesktopServicesPriv.framework/Versions/A/Desk topServicesPriv
    0x7fff883bc000 -     0x7fff88bc6fe7  libBLAS.dylib 219.0.0 (compatibility 1.0.0) <EEE5CE62-9155-6559-2AEA-05CED0F5B0F1> /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.fr amework/Versions/A/libBLAS.dylib
    0x7fff88bc7000 -     0x7fff88efbfef  com.apple.CoreServices.CarbonCore 861.39 (861.39) <1386A24D-DD15-5903-057E-4A224FAF580B> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/CarbonC ore.framework/Versions/A/CarbonCore
    0x7fff88efc000 -     0x7fff88f1ffff  com.apple.opencl 12.3.6 (12.3.6) <42FA5783-EB80-1168-4015-B8C68F55842F> /System/Library/Frameworks/OpenCL.framework/Versions/A/OpenCL
    0x7fff88f20000 -     0x7fff88f5efe7  libssl.0.9.8.dylib 0.9.8 (compatibility 0.9.8) <B3465B16-5B9D-C881-C61A-AFC9D8EDDC1B> /usr/lib/libssl.0.9.8.dylib
    0x7fff88f5f000 -     0x7fff88fddff7  com.apple.CoreText 151.13 (???) <5C6214AD-D683-80A8-86EB-328C99B75322> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ CoreText.framework/Versions/A/CoreText
    0x7fff88fde000 -     0x7fff8906efff  com.apple.SearchKit 1.3.0 (1.3.0) <3403E658-A54E-A79A-12EB-E090E8743984> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/SearchK it.framework/Versions/A/SearchKit
    0x7fff89198000 -     0x7fff891bfff7  libJPEG.dylib ??? (???) <08758593-6436-B29E-1DA8-F15597835EC1> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ImageIO.framework/Versions/A/Resources/libJPEG.dylib
    0x7fff891c0000 -     0x7fff891c5fff  libGIF.dylib ??? (???) <3BAD0DE8-8151-68B0-2244-A4541C738972> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ImageIO.framework/Versions/A/Resources/libGIF.dylib
    0x7fff891c6000 -     0x7fff8920dff7  com.apple.coreui 2 (114) <D7645B59-0431-6283-7322-957D944DAB21> /System/Library/PrivateFrameworks/CoreUI.framework/Versions/A/CoreUI
    0x7fff89457000 -     0x7fff89458fff  liblangid.dylib ??? (???) <EA4D1607-2BD5-2EE2-2A3B-632EEE5A444D> /usr/lib/liblangid.dylib
    0x7fff89526000 -     0x7fff896e7fef  libSystem.B.dylib 125.2.11 (compatibility 1.0.0) <9AB4F1D1-89DC-0E8A-DC8E-A4FE4D69DB69> /usr/lib/libSystem.B.dylib
    0x7fff89926000 -     0x7fff8992cff7  com.apple.CommerceCore 1.0 (9.1) <3691E9BA-BCF4-98C7-EFEC-78DA6825004E> /System/Library/PrivateFrameworks/CommerceKit.framework/Versions/A/Frameworks/C ommerceCore.framework/Versions/A/CommerceCore
    0x7fff8993f000 -     0x7fff89940ff7  libScreenReader.dylib ??? (???) <0E570442-073F-D6AD-5014-1FD91C631DCF> /usr/lib/libScreenReader.dylib
    0x7fff89941000 -     0x7fff8994eff7  com.apple.AppleFSCompression 24.4 (1.0) <57D6F613-CB5E-75BC-E351-3272D62227F5> /System/Library/PrivateFrameworks/AppleFSCompression.framework/Versions/A/Apple FSCompression
    0x7fff89ab9000 -     0x7fff89b3eff7  com.apple.print.framework.PrintCore 6.3 (312.7) <CDFE82DD-D811-A091-179F-6E76069B432D> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ PrintCore.framework/Versions/A/PrintCore
    0x7fff89b3f000 -     0x7fff89cb6fe7  com.apple.CoreFoundation 6.6.6 (550.44) <BB4E5158-E47A-39D3-2561-96CB49FA82D4> /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation
    0x7fff89cb7000 -     0x7fff89d00fef  libGLU.dylib ??? (???) <B0F4CA55-445F-E901-0FCF-47B3B4BAE6E2> /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGLU.dylib
    0x7fff89d01000 -     0x7fff89d12ff7  libz.1.dylib 1.2.3 (compatibility 1.0.0) <FB5EE53A-0534-0FFA-B2ED-486609433717> /usr/lib/libz.1.dylib
    0x7fff89d13000 -     0x7fff8a15afef  com.apple.RawCamera.bundle 3.7.1 (570) <5AFA87CA-DC3D-F84E-7EA1-6EABA8807766> /System/Library/CoreServices/RawCamera.bundle/Contents/MacOS/RawCamera
    0x7fff8a15b000 -     0x7fff8a18afff  com.apple.framework.Admin 4.7 (4.7) <58294380-377A-3E74-D2B3-0C6D577D3786> /System/Library/PrivateFrameworks/Admin.framework/Versions/A/Admin
    0x7fffffe00000 -     0x7fffffe01fff  libSystem.B.dylib ??? (???) <9AB4F1D1-89DC-0E8A-DC8E-A4FE4D69DB69> /usr/lib/libSystem.B.dylib
Model: iMac10,1, BootROM IM101.00CC.B00, 2 processors, Intel Core 2 Duo, 3.06 GHz, 4 GB, SMC 1.53f13
Graphics: ATI Radeon HD 4670, ATI Radeon HD 4670, PCIe, 256 MB
Memory Module: global_name
AirPort: spairport_wireless_card_type_airport_extreme (0x168C, 0x8F), Atheros 9280: 2.1.14.6
Bluetooth: Version 2.4.5f3, 2 service, 19 devices, 1 incoming serial ports
Network Service: Ethernet, Ethernet, en0
Network Service: AirPort, AirPort, en1
Serial ATA Device: WDC WD1001FALS-40U9B0, 931.51 GB
Serial ATA Device: HL-DT-ST DVDRW  GA11N, 807.2 MB
USB Device: Built-in iSight, 0x05ac  (Apple Inc.), 0x8502, 0x24400000 / 2
USB Device: Internal Memory Card Reader, 0x05ac  (Apple Inc.), 0x8403, 0x26500000 / 2
USB Device: Dell USB Keyboard, 0x413c  (Dell Inc.), 0x2003, 0x06400000 / 4
USB Device: Optical USB Mouse, 0x046d  (Logitech Inc.), 0xc016, 0x06200000 / 3
USB Device: BRCM2046 Hub, 0x0a5c  (Broadcom Corp.), 0x4500, 0x06100000 / 2
USB Device: Bluetooth USB Host Controller, 0x05ac  (Apple Inc.), 0x8215, 0x06110000 / 6
USB Device: Turtle Beach P11 Headset, 0x10f5, 0x0231, 0x04100000 / 3
USB Device: IR Receiver, 0x05ac  (Apple Inc.), 0x8242, 0x04500000 / 2

Answer 1

You have the MacBookPro6,2—the Edsel of Macs. It may have the logic-board defect that was covered by a recall program that has now ended.
Residents of the EU may be entitled to warranty service for up to six years after purchase.
Make a "Genius" appointment at an Apple Store, or go to another authorized service provider, to have the machine tested. The routine hardware diagnostics used by service providers do not detect the fault. There is a specific test for this issue that Apple calls "VST" (for "Video Switching Test.") Ask for it. A "Failed" result means that the fault is present.
You may be quoted a price of about $300 (in the U.S.) for a "depot repair," which involves shipping the unit to a central repair facility and takes about two weeks. For that flat fee, anything found wrong with it should be fixed, not just the logic board.
Sometimes the replacement part is also defective, so be prepared for that possibility. If you decide to pay for a new logic board, test thoroughly during the 90-day warranty period on the repair. Some owners have reported that they went through as many as three replacement boards before getting one that worked.
If you don't want to pay for the repair, you may (or may not) be able to stop the panics by disabling automatic graphics switching. To use the discrete graphics processor, you'll need a third-party utility to switch to it manually.
Often the problems start after an OS upgrade. If the upgrade was recent, and you have backups, then you can revert to a previous OS X version.