Mac won't shutdown after Leopard upgrade; Kernel trap report

After upgrading to Leopard last week, my iMac has repeatedly failed to shut down properly. When I select shutdown, the system seems to be turning off as usual, closing all programmes and the screen switching off to black, but one fan is still left running. The fan keeps running indefinitely (I've left it overnight many times and it's still been running in the morning) and the only way I can shut it off is by manually holding down the power switch for 5 seconds.
When I do that, and then turn the computer back on, I'm given a report mentioning a "kernel trap" etc, which I can't really decypher. If anybody could help me, I would really, really appreciate it.
Report:
Interval Since Last Panic Report: 52457 sec
Panics Since Last Report: 1
Anonymous UUID: CF43E22C-C568-4248-9B83-EF5D846E537A
Sun Jul 5 10:14:05 2009
panic(cpu 1 caller 0x001AB0FE): Kernel trap at 0x405b0214, type 14=page fault, registers:
CR0: 0x8001003b, CR2: 0x0000054f, CR3: 0x0108c000, CR4: 0x00000660
EAX: 0x006530e2, EBX: 0xffffffff, ECX: 0x005154c4, EDX: 0x08400654
CR2: 0x0000054f, EBP: 0x34553c88, ESI: 0x03f7a000, EDI: 0x405b23e8
EFL: 0x00010286, EIP: 0x405b0214, CS: 0x00000008, DS: 0x00000010
Error code: 0x00000000
Backtrace (CPU 1), Frame : Return Address (4 potential args on stack)
0x34553a98 : 0x12b4c6 (0x45ec20 0x34553acc 0x13355c 0x0)
0x34553ae8 : 0x1ab0fe (0x468ecc 0x405b0214 0xe 0x468678)
0x34553bc8 : 0x1a1703 (0x34553be0 0x206 0x34553c88 0x405b0214)
0x34553bd8 : 0x405b0214 (0xe 0x48 0x34550010 0x10)
0x34553c88 : 0x405ae76b (0x405b2428 0x3f7a000 0x6625a0 0x3efd02)
0x34553cb8 : 0x405ae7ee (0x3f7a000 0x66e99c 0x34553ce8 0x3f0864)
0x34553cd8 : 0x413637 (0x4392580 0x0 0x3f7a000 0x3f0931)
0x34553d08 : 0x414350 (0x3f7a000 0x43349c0 0x0 0x3f7a000)
0x34553d48 : 0x417f20 (0x3f7a000 0x3e08c40 0x0 0xffffffff)
0x34553d98 : 0x4180d3 (0x40da700 0x7 0x1 0x3faa940)
0x34553db8 : 0x5aac70 (0x40da700 0x3 0x1 0x40da700)
0x34553dd8 : 0xc5f457 (0x40da700 0x3 0x40dae04 0x40dae00)
0x34553e18 : 0xc5f5cb (0x40dad00 0x5c5b64 0x1 0x7ddae0)
0x34553e58 : 0xc5affb (0x40dad00 0x22b90cd8 0x34553eb8 0x4c207d8)
0x34553e98 : 0xc5df7f (0x4063800 0xc5ba1c 0x1 0x0)
0x34553ed8 : 0x41b9c6 (0x4063800 0x0 0x4063800 0x4063800)
Backtrace continues...
Kernel loadable modules in backtrace (with dependencies):
com.baltaks.driver.DoubleCommand(1.6.5)@0x405ad000->0x405b2fff
dependency: com.apple.iokit.IOHIDFamily(1.5.5)@0x636000
com.apple.driver.AppleUSBHub(3.4.0)@0xc59000->0xc64fff
dependency: com.apple.iokit.IOUSBFamily(3.4.3)@0x59d000
com.apple.iokit.IOUSBFamily(3.4.3)@0x59d000->0x5c5fff
BSD process name corresponding to current thread: kernel_task
Mac OS version:
9J61
Kernel version:
Darwin Kernel Version 9.7.0: Tue Mar 31 22:52:17 PDT 2009; root:xnu-1228.12.14~1/RELEASE_I386
System model name: iMac5,1 (Mac-F4228EC8)
System uptime in nanoseconds: 52510994952291
unloaded kexts:
com.apple.iokit.IOUSBMassStorageClass 2.0.6 - last unloaded 18242428816745
loaded kexts:
com.baltaks.driver.DoubleCommand 1.6.5
com.vmware.kext.vmnet 2.0.1
com.vmware.kext.vmioplug 2.0.1
com.vmware.kext.vmci 2.0.1
com.vmware.kext.vmx86 2.0.1
com.google.driver.Gild 1.0.0
xxx.qnation.PeerGuardian 1.1.7
com.apple.filesystems.msdosfs 1.5.4 - last loaded 18028914954690
com.apple.driver.iTunesPhoneDriver 1.0
com.apple.iokit.IOUSBMassStorageClass 2.0.6
com.apple.filesystems.ntfs 2.1
com.apple.driver.IOBluetoothBNEPDriver 2.1.6f8
com.apple.filesystems.autofs 2.0.2
com.apple.driver.AppleHWSensor 1.9d0
com.apple.driver.AppleUpstreamUserClient 2.7.5
com.apple.driver.AppleHDA 1.6.8a3
com.apple.kext.ATY_Wormy 5.4.4
com.apple.iokit.IOBluetoothSerialManager 2.1.6f8
com.apple.DontSteal_Mac_OSX 6.0.3
com.apple.ATIRadeonX1000 5.4.4
com.apple.driver.AppleHDAController 1.6.8a3
com.apple.iokit.IOFireWireIP 1.7.7
com.apple.driver.AppleIRController 110
com.apple.driver.AudioIPCDriver 1.0.6
com.apple.driver.ACPISMCPlatformPlugin 3.4.0d10
com.apple.driver.AppleLPC 1.2.12
com.apple.driver.AppleBacklight 1.6.0
com.apple.driver.CSRUSBBluetoothHCIController 2.1.6f8
com.apple.driver.AppleHIDKeyboard 1.0.8b1
com.apple.driver.AppleUSBMergeNub 3.4.3
com.apple.iokit.IOSCSIMultimediaCommandsDevice 2.0.9
com.apple.iokit.SCSITaskUserClient 2.0.9
com.apple.driver.XsanFilter 2.7.91
com.apple.iokit.IOATAPIProtocolTransport 1.5.2
com.apple.iokit.IOAHCIBlockStorage 1.2.1
com.apple.driver.AppleUSBHub 3.4.0
com.apple.iokit.IOUSBUserClient 3.3.1
com.apple.iokit.AppleYukon2 3.1.12b14
com.apple.driver.AppleUSBEHCI 3.4.3
com.apple.driver.AirPortBrcm43xx 363.35.0
com.apple.driver.AppleFWOHCI 3.8.2
com.apple.driver.AppleAHCIPort 1.6.0
com.apple.driver.AppleIntelPIIXATA 2.0.0
com.apple.driver.AppleUSBUHCI 3.3.5
com.apple.driver.AppleEFINVRAM 1.2.0
com.apple.driver.AppleRTC 1.2.3
com.apple.driver.AppleHPET 1.4
com.apple.driver.AppleACPIPCI 1.2.4
com.apple.driver.AppleACPIButtons 1.2.4
com.apple.driver.AppleSMBIOS 1.4
com.apple.driver.AppleACPIEC 1.2.4
com.apple.driver.AppleAPIC 1.4
com.apple.security.seatbelt 107.12
com.apple.nke.applicationfirewall 1.6.77
com.apple.security.TMSafetyNet 3
com.apple.driver.AppleIntelCPUPowerManagement 76.0.0
com.apple.driver.DiskImages 199
com.apple.BootCache 30.4
com.apple.driver.DspFuncLib 1.6.8a3
com.apple.iokit.IOSerialFamily 9.4
com.apple.iokit.IOHDAFamily 1.6.8a3
com.apple.iokit.IOAudioFamily 1.6.9fc3
com.apple.kext.OSvKernDSPLib 1.1
com.apple.driver.IOPlatformPluginFamily 3.4.0d10
com.apple.driver.AppleSMC 2.2.1d2
com.apple.iokit.IONDRVSupport 1.7.3
com.apple.iokit.IOGraphicsFamily 1.7.3
com.apple.driver.AppleUSBBluetoothHCIController 2.1.6f8
com.apple.iokit.IOBluetoothFamily 2.1.6f8
com.apple.iokit.IOUSBHIDDriver 3.2.2
com.apple.driver.AppleUSBComposite 3.2.0
com.apple.iokit.IOSCSIBlockCommandsDevice 2.0.9
com.apple.iokit.IOBDStorageFamily 1.5
com.apple.iokit.IODVDStorageFamily 1.5
com.apple.iokit.IOCDStorageFamily 1.5
com.apple.iokit.IOSCSIArchitectureModelFamily 2.0.9
com.apple.iokit.IO80211Family 216.1
com.apple.iokit.IONetworkingFamily 1.6.1
com.apple.iokit.IOFireWireFamily 3.4.7
com.apple.iokit.IOAHCIFamily 1.5.0
com.apple.iokit.IOATAFamily 2.0.1
com.apple.iokit.IOUSBFamily 3.4.3
com.apple.driver.AppleEFIRuntime 1.2.0
com.apple.iokit.IOSMBusFamily 1.1
com.apple.iokit.IOStorageFamily 1.5.6
com.apple.iokit.IOHIDFamily 1.5.5
com.apple.driver.AppleACPIPlatform 1.2.4
com.apple.iokit.IOACPIFamily 1.2.0
com.apple.iokit.IOPCIFamily 2.6

HI,
I think it's a kernel panic you are experiencing. Possibly when you upgraded to Leopard, a 3rd party software/hardware isn't compatible.
Go here to Resolve Kernel Panics
*"my iMac has repeatedly failed to shut down properly"*
Try resetting the SMC. http://support.apple.com/kb/HT1543
The System Management Controller (SMC) is a chip on the logic board that controls all power functions for your computer. If your computer is experiencing any power issue, resetting the SMC may resolve it. The SMC controls several functions, including:
Telling the computer when to turn on, turn off, sleep, wake, idle, and so forth.
Handling system resets from various commands.
*Controlling the fans.*
Carolyn
Message was edited by: Carolyn Samit

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