IMac stuck (and asking for hard reboot)

The problem is that suddenly (during Websurfing, watching video etc.) gray "curtain" falling down the screen and message (in different languages) appears saying I must push Power button until iMac shut down then turn it ON again.
After hard-reboot in suggested way OS sends error report to Apple.
There was about 6 times for two last weeks, today - twice.
I really puzzled by this problem and hopin' some advices from community to recieve.
My iMac is about 1 year old - 21.5", 3.2 Ghz i3, 8Gb RAM, OSX Lion 10.7.2

Damned!
Everyday's KP.
Here is last log:
Tue Nov 15 10:09:55 2011
panic(cpu 2 caller 0xffffff80002c266d): Kernel trap at 0xffffff800028fff0, type 13=general protection, registers:
CR0: 0x0000000080010033, CR2: 0x0000000117f59000, CR3: 0x000000003ad27051, CR4: 0x00000000000206e0
RAX: 0x0000000000000001, RBX: 0x00000000003ec000, RCX: 0xffffff80165ceb40, RDX: 0x000000000015c42d
RSP: 0xffffff80f226b1f0, RBP: 0xffffff80f226b210, RSI: 0x000000002f908380, RDI: 0xffffff8005281210
R8:  0x0000000000000001, R9:  0xffffff80f226b540, R10: 0xffffff7f8190ba90, R11: 0x0000000000000001
R12: 0xffffff8005281210, R13: 0x0000000000000003, R14: 0xffffff80140d2c60, R15: 0x0040000000000000
RFL: 0x0000000000010206, RIP: 0xffffff800028fff0, CS:  0x0000000000000008, SS:  0x0000000000000010
CR2: 0x0000000117f59000, Error code: 0x0000000000000000, Faulting CPU: 0x2
Backtrace (CPU 2), Frame : Return Address
0xffffff80f226aeb0 : 0xffffff8000220702
0xffffff80f226af30 : 0xffffff80002c266d
0xffffff80f226b0d0 : 0xffffff80002d7a1d
0xffffff80f226b0f0 : 0xffffff800028fff0
0xffffff80f226b210 : 0xffffff8000287ef9
0xffffff80f226b570 : 0xffffff80002671fd
0xffffff80f226b5e0 : 0xffffff8000646011
0xffffff80f226b6f0 : 0xffffff80006449eb
0xffffff80f226b720 : 0xffffff7f816f4d99
0xffffff80f226b780 : 0xffffff7f816ae974
0xffffff80f226b7b0 : 0xffffff7f81692a1c
0xffffff80f226b7f0 : 0xffffff7f8168fb0c
0xffffff80f226b820 : 0xffffff7f816c26ea
0xffffff80f226b870 : 0xffffff7f816d7744
0xffffff80f226b8a0 : 0xffffff7f816d7a13
0xffffff80f226b960 : 0xffffff7f816d7cc7
0xffffff80f226b9b0 : 0xffffff7f816d53dc
0xffffff80f226ba00 : 0xffffff7f81696f49
0xffffff80f226ba40 : 0xffffff7f816d921b
0xffffff80f226ba90 : 0xffffff7f8169a484
0xffffff80f226bb60 : 0xffffff7f816975eb
0xffffff80f226bbc0 : 0xffffff80006523be
0xffffff80f226bbe0 : 0xffffff8000652c9a
0xffffff80f226bc40 : 0xffffff800065343b
0xffffff80f226bd80 : 0xffffff80002a3898
0xffffff80f226be80 : 0xffffff8000223006
0xffffff80f226beb0 : 0xffffff8000214829
0xffffff80f226bf10 : 0xffffff800021bb58
0xffffff80f226bf70 : 0xffffff80002ae8a0
0xffffff80f226bfb0 : 0xffffff80002d8383
      Kernel Extensions in backtrace:
         com.apple.ATIRadeonX3000(7.1.2)[B6470E9A-54A0-3DF8-846F-CE1C4F9BD1F0]@0xffffff7 f8168e000->0xffffff7f81924fff
            dependency: com.apple.iokit.IOPCIFamily(2.6.7)[6D54F06A-46B7-37FC-AF22-DE68DC18A1A3]@0xffff ff7f80821000
            dependency: com.apple.iokit.IONDRVSupport(2.3.2)[6517D9A6-58F5-3CFC-B021-C882306150D5]@0xff ffff7f80cb3000
            dependency: com.apple.iokit.IOGraphicsFamily(2.3.2)[55FF26D3-292D-3B4B-8AB7-1D25C8B4313B]@0 xffffff7f80c7b000
BSD process name corresponding to current thread: Safari
Mac OS version:
11C74
Kernel version:
Darwin Kernel Version 11.2.0: Tue Aug  9 20:54:00 PDT 2011; root:xnu-1699.24.8~1/RELEASE_X86_64
Kernel UUID: 59275DFA-10C0-30B3-9E26-F7B5DFB1A432
System model name: iMac11,2 (Mac-F2238AC8)
System uptime in nanoseconds: 4183407562567
last loaded kext at 4058322378623: com.apple.iokit.IOAVBFamily          1.0.0d22 (addr 0xffffff7f8078d000, size 36864)
last unloaded kext at 4135806919923: com.apple.iokit.IOAVBFamily          1.0.0d22 (addr 0xffffff7f8078d000, size 36864)
loaded kexts:
com.bresink.driver.BRESINKx86Monitoring          8.0
com.pihto.driver.KirguduDriver          1.0.5
com.iospirit.driver.rbiokithelper          1.18.1
com.apple.driver.AppleBluetoothMultitouch          66.3
com.apple.driver.AppleHWSensor          1.9.4d0
com.apple.filesystems.autofs          3.0
com.apple.driver.IOBluetoothSCOAudioDriver          4.0.1f4
com.apple.driver.AppleMikeyHIDDriver          122
com.apple.driver.AudioAUUC          1.59
com.apple.driver.AppleUpstreamUserClient          3.5.9
com.apple.driver.AppleMCCSControl          1.0.26
com.apple.kext.ATIFramebuffer          7.1.2
com.apple.ATIRadeonX3000          7.1.2
com.apple.driver.AppleMikeyDriver          2.1.3f7
com.apple.driver.AppleHDA          2.1.3f7
com.apple.driver.AGPM          100.12.42
com.apple.iokit.IOUserEthernet          1.0.0d1
com.apple.Dont_Steal_Mac_OS_X          7.0.0
com.apple.driver.AudioIPCDriver          1.2.1
com.apple.driver.AirPort.Atheros40          501.58.1
com.apple.driver.ACPI_SMC_PlatformPlugin          4.7.5d4
com.apple.driver.AppleLPC          1.5.3
com.apple.driver.AppleBacklight          170.1.9
com.apple.driver.AppleUSBCardReader          3.0.1
com.apple.iokit.SCSITaskUserClient          3.0.1
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless          1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib          1.0.0d1
com.apple.BootCache          33
com.apple.iokit.IOAHCIBlockStorage          2.0.1
com.apple.driver.AppleFWOHCI          4.8.9
com.apple.driver.AppleUSBHub          4.5.0
com.apple.iokit.AppleBCM5701Ethernet          3.0.8b2
com.apple.driver.AppleEFINVRAM          1.5.0
com.apple.driver.AppleAHCIPort          2.2.0
com.apple.driver.AppleUSBEHCI          4.5.0
com.apple.driver.AppleRTC          1.4
com.apple.driver.AppleACPIButtons          1.4
com.apple.driver.AppleHPET          1.6
com.apple.driver.AppleSMBIOS          1.7
com.apple.driver.AppleACPIEC          1.4
com.apple.driver.AppleAPIC          1.5
com.apple.driver.AppleIntelCPUPowerManagementClient          167.0.0
com.apple.nke.applicationfirewall          3.2.30
com.apple.security.quarantine          1
com.apple.driver.AppleIntelCPUPowerManagement          167.0.0
com.apple.driver.AppleBluetoothHIDKeyboard          152.3
com.apple.driver.AppleHIDKeyboard          152.3
com.apple.driver.AppleMultitouchDriver          220.62.1
com.apple.driver.IOBluetoothHIDDriver          4.0.1f4
com.apple.kext.triggers          1.0
com.apple.driver.DspFuncLib          2.1.3f7
com.apple.kext.ATI5000Controller          7.1.2
com.apple.kext.ATISupport          7.1.2
com.apple.driver.AppleSMBusController          1.0.10d0
com.apple.iokit.IOFireWireIP          2.2.4
com.apple.driver.AppleHDAController          2.1.3f7
com.apple.iokit.IOHDAFamily          2.1.3f7
com.apple.iokit.IOSurface          80.0
com.apple.iokit.IOBluetoothSerialManager          4.0.1f4
com.apple.iokit.IOSerialFamily          10.0.5
com.apple.iokit.IOAudioFamily          1.8.3fc11
com.apple.kext.OSvKernDSPLib          1.3
com.apple.driver.ApplePolicyControl          3.0.16
com.apple.iokit.IO80211Family          411.1
com.apple.driver.AppleSMC          3.1.1d8
com.apple.driver.IOPlatformPluginFamily          4.7.5d4
com.apple.driver.AppleSMBusPCI          1.0.10d0
com.apple.driver.AppleGraphicsControl          3.0.16
com.apple.driver.AppleBacklightExpert          1.0.3
com.apple.iokit.IONDRVSupport          2.3.2
com.apple.iokit.IOGraphicsFamily          2.3.2
com.apple.driver.BroadcomUSBBluetoothHCIController          4.0.1f4
com.apple.driver.AppleUSBBluetoothHCIController          4.0.1f4
com.apple.iokit.IOBluetoothFamily          4.0.1f4
com.apple.iokit.IOUSBHIDDriver          4.4.5
com.apple.iokit.IOSCSIBlockCommandsDevice          3.0.1
com.apple.iokit.IOUSBMassStorageClass          3.0.0
com.apple.driver.AppleUSBMergeNub          4.5.3
com.apple.driver.AppleUSBComposite          3.9.0
com.apple.iokit.IOSCSIMultimediaCommandsDevice          3.0.1
com.apple.iokit.IOBDStorageFamily          1.6
com.apple.iokit.IODVDStorageFamily          1.7
com.apple.iokit.IOCDStorageFamily          1.7
com.apple.driver.XsanFilter          403
com.apple.iokit.IOAHCISerialATAPI          2.0.1
com.apple.iokit.IOSCSIArchitectureModelFamily          3.0.1
com.apple.iokit.IOFireWireFamily          4.4.5
com.apple.iokit.IOUSBUserClient          4.5.3
com.apple.iokit.IOEthernetAVBController          1.0.0d5
com.apple.iokit.IONetworkingFamily          2.0
com.apple.iokit.IOAHCIFamily          2.0.7
com.apple.iokit.IOUSBFamily          4.5.3
com.apple.driver.AppleEFIRuntime          1.5.0
com.apple.iokit.IOHIDFamily          1.7.1
com.apple.iokit.IOSMBusFamily          1.1
com.apple.security.sandbox          165.3
com.apple.kext.AppleMatch          1.0.0d1
com.apple.security.TMSafetyNet          7
com.apple.driver.DiskImages          331
com.apple.iokit.IOStorageFamily          1.7
com.apple.driver.AppleKeyStore          28.18
com.apple.driver.AppleACPIPlatform          1.4
com.apple.iokit.IOPCIFamily          2.6.7
com.apple.iokit.IOACPIFamily          1.4
Can re-installing Lion solve my problem?
Also I didn't manage to catch which com.apple.ATIRadeonX3000 in backtrace can it be when in my iMac ATI Radeon HD 5670 is used?

Similar Messages

Maybe you are looking for

  • Can not open Mail App in IOS 8.1.1

    Since I installed IOS 8.1.1 versión today I have not been able to open Mail App. When I try to open it the screen turns white for a few seconds and then it crashes. I would like to know if there is any solution to this, as checking my mail is escenti

  • [JS] [CS5] Copy and paste into existing array

    Hi Guys, right now I'm trying to improve the performance of a Script I wrote by copying and pasting a PDF instead of loading it 10 times. And here's the problem: When pasting the copied PDF it doesn't paste it into the array the original PDF is in bu

  • Iphone connecting to MacBook Pro via bluetooth

    I have paired my iPhone to my MacBook Pro and selected bluetooth sharing. Although paired, for some reason, they will not connect. Any Ideas

  • INSTALLATION FRUSTRATION

    I have tried time and time again to download ADOBE ACROBAT. It downloads, but then when I click on it I get this message: There is no default application specified to open the document "AdbeRdr90en_USppc.pkg". This is extremely frustrating as I can't

  • Longer Download times

    Greetings again! I, Dustin, have a nature photography business at web.mac.com/debo0062/iweb and some of my photo pages have long download times. Now in Photoshop I have saved each picture as a save for web and at a much reduced quality. I know that w