I am getting this kernel panic frequently.  Does anyone have any idea why?

Using a MacBook Pro circa 2007, 10.7.5 2.2ghz intel core 2 duo, 4 gigs of ram
Interval Since Last Panic Report:  121674 sec
Panics Since Last Report:          1
Anonymous UUID:                    289B03BD-5D9C-4198-A2B5-D295A20C9B9B
Tue Nov 20 12:26:44 2012
panic(cpu 0 caller 0xffffff80002c4794): Kernel trap at 0xffffff80002eb0d4, type 13=general protection, registers:
CR0: 0x0000000080010033, CR2: 0x00007fd043003000, CR3: 0x000000005384f000, CR4: 0x0000000000000660
RAX: 0xff00ff800dd26458, RBX: 0xffffff800b1db000, RCX: 0x000000000001ffff, RDX: 0xffffff800b1c1970
RSP: 0xffffff807f4bbd20, RBP: 0xffffff807f4bbd30, RSI: 0x0000000000000000, RDI: 0xffffff8017641140
R8:  0x0000000000000000, R9:  0x00000000021d6dd1, R10: 0x000000000000007c, R11: 0xffffff80002dad60
R12: 0x0000000000000000, R13: 0xffffff800d6b1fd4, R14: 0xffffff807f63e2d0, R15: 0xffffff800b1db000
RFL: 0x0000000000010282, RIP: 0xffffff80002eb0d4, CS:  0x0000000000000008, SS:  0x0000000000000010
CR2: 0x00007fd043003000, Error code: 0x0000000000000000, Faulting CPU: 0x0
Backtrace (CPU 0), Frame : Return Address
0xffffff807f4bb9d0 : 0xffffff8000220792
0xffffff807f4bba50 : 0xffffff80002c4794
0xffffff807f4bbc00 : 0xffffff80002da55d
0xffffff807f4bbc20 : 0xffffff80002eb0d4
0xffffff807f4bbd30 : 0xffffff800030eac8
0xffffff807f4bbd80 : 0xffffff800030ee6d
0xffffff807f4bbf50 : 0xffffff80005ce4cb
0xffffff807f4bbfb0 : 0xffffff80002daea3
BSD process name corresponding to current thread: umount
Mac OS version:
11G63
Kernel version:
Darwin Kernel Version 11.4.2: Thu Aug 23 16:25:48 PDT 2012; root:xnu-1699.32.7~1/RELEASE_X86_64
Kernel UUID: FF3BB088-60A4-349C-92EA-CA649C698CE5
System model name: MacBookPro3,1 (Mac-F4238BC8)
System uptime in nanoseconds: 92929401473866
last loaded kext at 73206052583219: com.apple.driver.AppleUSBCDC    4.1.22 (addr 0xffffff7f807a8000, size 16384)
last unloaded kext at 73266292481170: com.apple.driver.AppleUSBCDC    4.1.22 (addr 0xffffff7f807a8000, size 12288)
loaded kexts:
com.Cycling74.driver.Soundflower    1.5.1
com.jft.driver.PdaNetDrv    1.0.64
com.AmbrosiaSW.AudioSupport    3.2
com.apple.driver.AppleHWSensor    1.9.5d0
com.apple.iokit.IOBluetoothSerialManager    4.0.8f17
com.apple.driver.AudioAUUC    1.59
com.apple.driver.AppleHDA    2.2.5a5
com.apple.driver.SMCMotionSensor    3.0.2d6
com.apple.filesystems.autofs    3.0
com.apple.driver.AppleSMCPDRC    5.0.0d8
com.apple.driver.AppleSMCLMU    2.0.1d2
com.apple.iokit.IOUserEthernet    1.0.0d1
com.apple.Dont_Steal_Mac_OS_X    7.0.0
com.apple.driver.AudioIPCDriver    1.2.3
com.apple.driver.ApplePolicyControl    3.1.33
com.apple.driver.AirPort.Atheros21    431.14.10
com.apple.driver.ACPI_SMC_PlatformPlugin    5.0.0d8
com.apple.driver.AppleLPC    1.6.0
com.apple.driver.AppleBacklight    170.2.2
com.apple.driver.AppleUpstreamUserClient    3.5.9
com.apple.driver.AppleMCCSControl    1.0.33
com.apple.GeForce    7.3.2
com.apple.driver.CSRUSBBluetoothHCIController    4.0.8f17
com.apple.driver.AppleUSBTrackpad    227.6
com.apple.driver.AppleUSBTCKeyEventDriver    227.6
com.apple.driver.AppleUSBTCKeyboard    227.6
com.apple.driver.AppleIRController    312
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless    1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib    1.0.0d1
com.apple.BootCache    33
com.apple.iokit.SCSITaskUserClient    3.2.1
com.apple.driver.XsanFilter    404
com.apple.iokit.IOAHCIBlockStorage    2.1.0
com.apple.driver.AppleFWOHCI    4.9.0
com.apple.iokit.AppleYukon2    3.2.2b1
com.apple.driver.AppleUSBHub    5.1.0
com.apple.driver.AppleAHCIPort    2.3.1
com.apple.driver.AppleIntelPIIXATA    2.5.1
com.apple.driver.AppleUSBUHCI    5.1.0
com.apple.driver.AppleUSBEHCI    5.1.0
com.apple.driver.AppleSmartBatteryManager    161.0.0
com.apple.driver.AppleEFINVRAM    1.6.1
com.apple.driver.AppleRTC    1.5
com.apple.driver.AppleHPET    1.7
com.apple.driver.AppleACPIButtons    1.5
com.apple.driver.AppleSMBIOS    1.9
com.apple.driver.AppleACPIEC    1.5
com.apple.driver.AppleAPIC    1.6
com.apple.driver.AppleIntelCPUPowerManagementClient    195.0.0
com.apple.nke.applicationfirewall    3.2.30
com.apple.security.quarantine    1.4
com.apple.security.TMSafetyNet    8
com.apple.driver.AppleIntelCPUPowerManagement    195.0.0
com.apple.iokit.IOSerialFamily    10.0.5
com.apple.driver.DspFuncLib    2.2.5a5
com.apple.kext.triggers    1.0
com.apple.iokit.IOFireWireIP    2.2.5
com.apple.iokit.IOSurface    80.0.2
com.apple.iokit.IOAudioFamily    1.8.6fc18
com.apple.kext.OSvKernDSPLib    1.3
com.apple.driver.AppleHDAController    2.2.5a5
com.apple.iokit.IOHDAFamily    2.2.5a5
com.apple.iokit.IO80211Family    420.3
com.apple.driver.AppleSMC    3.1.3d10
com.apple.driver.IOPlatformPluginLegacy    5.0.0d8
com.apple.driver.IOPlatformPluginFamily    5.1.1d6
com.apple.driver.AppleGraphicsControl    3.1.33
com.apple.driver.AppleBacklightExpert    1.0.4
com.apple.driver.AppleSMBusController    1.0.10d0
com.apple.nvidia.nv50hal    7.3.2
com.apple.NVDAResman    7.3.2
com.apple.iokit.IONDRVSupport    2.3.4
com.apple.iokit.IOGraphicsFamily    2.3.4
com.apple.driver.AppleUSBBluetoothHCIController    4.0.8f17
com.apple.iokit.IOBluetoothFamily    4.0.8f17
com.apple.iokit.IOUSBHIDDriver    5.0.0
com.apple.iokit.IOSCSIBlockCommandsDevice    3.2.1
com.apple.driver.AppleUSBMergeNub    5.1.0
com.apple.iokit.IOUSBMassStorageClass    3.0.3
com.apple.driver.AppleUSBComposite    5.0.0
com.apple.iokit.IOSCSIMultimediaCommandsDevice    3.2.1
com.apple.iokit.IOBDStorageFamily    1.7
com.apple.iokit.IODVDStorageFamily    1.7.1
com.apple.iokit.IOCDStorageFamily    1.7.1
com.apple.iokit.IOATAPIProtocolTransport    3.0.0
com.apple.iokit.IOSCSIArchitectureModelFamily    3.2.1
com.apple.iokit.IOFireWireFamily    4.4.8
com.apple.iokit.IONetworkingFamily    2.1
com.apple.iokit.IOUSBUserClient    5.0.0
com.apple.iokit.IOAHCIFamily    2.0.8
com.apple.iokit.IOATAFamily    2.5.1
com.apple.iokit.IOUSBFamily    5.1.0
com.apple.driver.AppleEFIRuntime    1.6.1
com.apple.iokit.IOHIDFamily    1.7.1
com.apple.iokit.IOSMBusFamily    1.1
com.apple.security.sandbox    177.8
com.apple.kext.AppleMatch    1.0.0d1
com.apple.driver.DiskImages    331.7
com.apple.iokit.IOStorageFamily    1.7.2
com.apple.driver.AppleKeyStore    28.18
com.apple.driver.AppleACPIPlatform    1.5
com.apple.iokit.IOPCIFamily    2.7
com.apple.iokit.IOACPIFamily    1.4
Model: MacBookPro3,1, BootROM MBP31.0070.B07, 2 processors, Intel Core 2 Duo, 2.2 GHz, 4 GB, SMC 1.16f11
Graphics: NVIDIA GeForce 8600M GT, GeForce 8600M GT, PCIe, 128 MB
Memory Module: BANK 0/DIMM0, 2 GB, DDR2 SDRAM, 667 MHz, 0x7F7F9E0000000000, 0x565332475344533636374432202020202020
Memory Module: BANK 1/DIMM1, 2 GB, DDR2 SDRAM, 667 MHz, 0x7F7F9E0000000000, 0x565332475344533636374432202020202020
AirPort: spairport_wireless_card_type_airport_extreme (0x168C, 0x87), Atheros 5416: 2.1.14.9
Bluetooth: Version 4.0.8f17, 2 service, 18 devices, 1 incoming serial ports
Network Service: AirPort, AirPort, en1
Network Service: Ethernet Adaptor (en2), Ethernet, en2
PCI Card: pci168c,24, sppci_othernetwork, PCI Slot 5
Serial ATA Device: WDC WD5000BEVT-00A0RT0, 500.11 GB
Parallel ATA Device: HL-DT-ST DVDRW  GSA-S10N
USB Device: My Book, 0x1058  (Western Digital Technologies, Inc.), 0x1100, 0xfa200000 / 2
USB Device: Built-in iSight, apple_vendor_id, 0x8502, 0xfd400000 / 2
USB Device: Apple Internal Keyboard / Trackpad, apple_vendor_id, 0x021a, 0x5d200000 / 3
USB Device: IR Receiver, apple_vendor_id, 0x8242, 0x5d100000 / 2
USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x8205, 0x1a100000 / 2

First thing I would try is a full shutdown and restart, which sometimes fixes these kinds of glitches. Next thing is to log in to another account or create one and see if this happens there or not. If it doesn't, don't delete your regular account, this is only for troubleshooting.

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