macbook crashing

not sure what this means can anyone tell me?

Interval Since Last Panic Report: 30322 sec
Panics Since Last Report: 1
Anonymous UUID: 0C987DE3-DA8B-4852-BA4D-867DAF113EA3

Mon Mar 29 22:51:31 2010
panic(cpu 0 caller 0x21d4dabe): AppleIntelGMAX3100FB GPU parser error. EIR 0x1 ESR 0x1 Instruction Error IPEIR 0 IPEHR 0x94c7097e BBADDR 0 INSTDONE 0xffe5fafd INSTPS 0x98c32 INSTPM 0x10
Backtrace (CPU 0), Frame : Return Address (4 potential args on stack)
0x38d9be28 : 0x21b2bd (0x5cf868 0x38d9be5c 0x223719 0x0)
0x38d9be78 : 0x21d4dabe (0x21d55b64 0x3b68d00 0x21d55b54 0x1)
0x38d9bf08 : 0x5491b5 (0x3bb7000 0x3b90000 0x1 0x29c50a)
0x38d9bf58 : 0x5481e6 (0x3b90000 0x3ce3b7c 0x38d9bfa8 0x218f16)
0x38d9bf88 : 0x548640 (0x3beb740 0x0 0x82776239 0xffffffff)
0x38d9bfc8 : 0x29d68c (0x3beb740 0x0 0x29d69b 0x38d48c4)
Kernel Extensions in backtrace (with dependencies):
com.apple.driver.AppleIntelGMAX3100FB(6.0.6)@0x21d42000->0x21d58fff
dependency: com.apple.iokit.IOACPIFamily(1.3.0)@0x1b529000
dependency: com.apple.iokit.IOPCIFamily(2.6)@0x1b71b000
dependency: com.apple.iokit.IOGraphicsFamily(2.0)@0x21b96000
dependency: com.apple.driver.AppleSMC(3.0.1d2)@0x21bfd000

BSD process name corresponding to current thread: kernel_task

Mac OS version:
10C540

Kernel version:
Darwin Kernel Version 10.2.0: Tue Nov 3 10:37:10 PST 2009; root:xnu-1486.2.11~1/RELEASE_I386
System model name: MacBook4,1 (Mac-F22788A9)

System uptime in nanoseconds: 30423924003387
unloaded kexts:
com.apple.iokit.IOUSBMassStorageClass 2.5.1 (addr 0x38fed000, size 0x45056) - last unloaded 26144335366562
loaded kexts:
jp.co.softsirius.iUTd 0.0.7 - last loaded 30415728607576
com.parallels.kext.prl_vnic 5.0 9220.531002
com.parallels.kext.prl_netbridge 5.0 9220.531002
com.parallels.kext.prl_usb_connect 5.0 9220.531002
com.parallels.kext.prl_hid_hook 5.0 9220.531002
com.symantec.kext.SymAPComm 11.1f102
com.parallels.kext.prl_hypervisor 5.0 9220.531002
com.pctools.iantivirus.kfs 1.0.1
com.symantec.kext.ips 3.0f35
com.symantec.kext.internetSecurity 1.3.1f7
at.obdev.nke.LittleSnitch 2.2.05
com.apple.nke.pppoe 1.5
com.apple.filesystems.udf 2.1
com.apple.filesystems.autofs 2.1.0
com.apple.driver.IOBluetoothBNEPDriver 2.2.4f3
com.apple.driver.AppleHWSensor 1.9.2d0
com.apple.driver.AppleIntelPenrynProfile 17
com.apple.Dont_Steal_Mac_OS_X 7.0.0
com.apple.driver.AppleUpstreamUserClient 3.1.0
com.apple.driver.AppleIntelGMAX3100 6.0.6
com.apple.driver.AudioIPCDriver 1.1.2
com.apple.driver.AppleHDA 1.7.9a4
com.apple.driver.AppleBacklight 170.0.14
com.apple.driver.AppleIntelGMAX3100FB 6.0.6
com.apple.driver.SMCMotionSensor 3.0.0d4
com.apple.iokit.AppleYukon2 3.1.14b1
com.apple.driver.AirPortBrcm43xx 421.91.26
com.apple.driver.ACPI_SMC_PlatformPlugin 4.0.1d0
com.apple.driver.AppleLPC 1.4.9
com.apple.driver.AppleUSBTrackpad 1.8.0b4
com.apple.driver.AppleUSBTCKeyEventDriver 1.8.0b4
com.apple.driver.AppleUSBTCKeyboard 1.8.0b4
com.apple.driver.AppleIRController 251.1.4
com.apple.iokit.SCSITaskUserClient 2.6.0
com.apple.BootCache 31
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1
com.apple.iokit.IOAHCIBlockStorage 1.6.0
com.apple.driver.AppleAHCIPort 2.0.1
com.apple.driver.AppleIntelPIIXATA 2.5.0
com.apple.driver.AppleFWOHCI 4.4.0
com.apple.driver.AppleUSBHub 3.8.4
com.apple.driver.AppleUSBEHCI 3.7.5
com.apple.driver.AppleUSBUHCI 3.7.5
com.apple.driver.AppleEFINVRAM 1.3.0
com.apple.driver.AppleRTC 1.3
com.apple.driver.AppleHPET 1.4
com.apple.driver.AppleSmartBatteryManager 160.0.0
com.apple.driver.AppleACPIButtons 1.3
com.apple.driver.AppleSMBIOS 1.4
com.apple.driver.AppleACPIEC 1.3
com.apple.driver.AppleAPIC 1.4
com.apple.driver.AppleIntelCPUPowerManagementClient 96.0.0
com.apple.security.sandbox 0
com.apple.security.quarantine 0
com.apple.nke.applicationfirewall 2.1.11
com.apple.driver.AppleIntelCPUPowerManagement 96.0.0
com.apple.nke.ppp 1.5
com.apple.driver.AppleProfileReadCounterAction 17
com.apple.driver.AppleProfileTimestampAction 10
com.apple.driver.AppleProfileThreadInfoAction 14
com.apple.driver.AppleProfileRegisterStateAction 10
com.apple.driver.AppleProfileKEventAction 10
com.apple.driver.AppleProfileCallstackAction 20
com.apple.iokit.IOSurface 73.0
com.apple.iokit.IOBluetoothSerialManager 2.2.4f3
com.apple.iokit.IOSerialFamily 10.0.3
com.apple.driver.DspFuncLib 1.7.9a4
com.apple.iokit.IOAudioFamily 1.7.2fc1
com.apple.kext.OSvKernDSPLib 1.3
com.apple.iokit.IONDRVSupport 2.0
com.apple.iokit.IO80211Family 310.6
com.apple.iokit.AppleProfileFamily 41
com.apple.driver.AppleHDAController 1.7.9a4
com.apple.iokit.IOGraphicsFamily 2.0
com.apple.iokit.IOHDAFamily 1.7.9a4
com.apple.driver.AppleSMC 3.0.1d2
com.apple.driver.IOPlatformPluginFamily 4.0.1d0
com.apple.iokit.IOFireWireIP 2.0.3
com.apple.iokit.IONetworkingFamily 1.9
com.apple.driver.CSRUSBBluetoothHCIController 2.2.4f3
com.apple.driver.AppleUSBBluetoothHCIController 2.2.4f3
com.apple.iokit.IOBluetoothFamily 2.2.4f3
com.apple.driver.AppleUSBMergeNub 3.8.5
com.apple.iokit.IOUSBHIDDriver 3.8.4
com.apple.driver.AppleUSBComposite 3.7.5
com.apple.iokit.IOSCSIMultimediaCommandsDevice 2.6.0
com.apple.iokit.IOBDStorageFamily 1.6
com.apple.iokit.IODVDStorageFamily 1.6
com.apple.iokit.IOCDStorageFamily 1.6
com.apple.driver.XsanFilter 402.1
com.apple.iokit.IOATAPIProtocolTransport 2.5.0
com.apple.iokit.IOSCSIArchitectureModelFamily 2.6.0
com.apple.iokit.IOAHCIFamily 2.0.2
com.apple.iokit.IOATAFamily 2.5.0
com.apple.iokit.IOFireWireFamily 4.1.7
com.apple.iokit.IOUSBUserClient 3.8.5
com.apple.iokit.IOUSBFamily 3.8.5
com.apple.driver.AppleEFIRuntime 1.3.0
com.apple.iokit.IOHIDFamily 1.6.1
com.apple.iokit.IOSMBusFamily 1.1
com.apple.security.TMSafetyNet 6
com.apple.kext.AppleMatch 1.0.0d1
com.apple.driver.DiskImages 281
com.apple.iokit.IOStorageFamily 1.6
com.apple.driver.AppleACPIPlatform 1.3
com.apple.iokit.IOPCIFamily 2.6
com.apple.iokit.IOACPIFamily 1.3.0
Model: MacBook4,1, BootROM MB41.00C1.B00, 2 processors, Intel Core 2 Duo, 2.1 GHz, 1 GB, SMC 1.31f0
Graphics: Intel GMA X3100, GMA X3100, Built-In, 144 MB
Memory Module: global_name
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x88), Broadcom BCM43xx 1.0 (5.10.91.26)
Bluetooth: Version 2.2.4f3, 2 service, 1 devices, 2 incoming serial ports
Network Service: iBurst Terminal, Ethernet, en6
Serial ATA Device: ST9250827AS, 232,89 GB
Parallel ATA Device: MATSHITADVD-R UJ-867, 6,19 GB
USB Device: Built-in iSight, 0x05ac (Apple Inc.), 0x8501, 0xfd400000
USB Device: iBurst Terminal, 0x0482 (Kyocera Corporation), 0x0204, 0x1d100000
USB Device: Apple Internal Keyboard / Trackpad, 0x05ac (Apple Inc.), 0x022a, 0x5d200000
USB Device: IR Receiver, 0x05ac (Apple Inc.), 0x8242, 0x5d100000
USB Device: Bluetooth USB Host Controller, 0x05ac (Apple Inc.), 0x8205, 0x1a100000

That's what's known as a kernel panic crash.

Looks like it crashed when you were running Parallels? Are you using the latest version of Parallels with all updates installed? Also notice that you're running Symantec Internet Security and PC Tools AV software while in Windows. And "Little Snitch" from OS X at the same time. You're not paranoid about "catching" anything nasty from the net are you?

Regards.