( résolu) probléme avec périphéries externes

slt a tous depuis quelques jours j'ai un soucis avec mon mac dés que je branche une périphérie externe (clé usb ,disque dur,app photos numérique) mon écran deviens gris avec un message me disant qu'il faut que je redémarre mon ordi . J'ai testé sur un autre usb et le probléme et toujours le meme si qq a la soluce ça serai bien sympa message d'erreur:Mon May 4 16:58:29 2009
panic(cpu 0 caller 0x003EB97C): "IOUSBDevice::_RESERVEDIOUSBDevice8 called\n"@/SourceCache/xnu/xnu-1228.9.59/libkern/c++/OSMetaClass.cpp:816
Backtrace (CPU 0), Frame : Return Address (4 potential args on stack)
0x34b2ba68 : 0x12b4f3 (0x45b13c 0x34b2ba9c 0x1335e4 0x0)
0x34b2bab8 : 0x3eb97c (0x49c500 0x5b5280 0x5b5280 0x8)
0x34b2bad8 : 0x5a64d4 (0x5bd118 0x8 0x34b2bb08 0x3ece8f)
0x34b2baf8 : 0x344d3b66 (0x4dd0b00 0x34b2bb1c 0x34b2bb28 0x3f0459)
0x34b2bb28 : 0x344d49ce (0x4cd9e00 0x344d9ad4 0x3ebc2e0 0x0)
0x34b2bb78 : 0x412976 (0x4cd9e00 0x4dd0a00 0x1 0x3ecd96)
0x34b2bbd8 : 0x414219 (0x4dd0a00 0x4cd9e00 0x3e9bce0 0x3e818a0)
0x34b2bc58 : 0x413a7d (0x4dd0a00 0x4417180 0x0 0x1)
0x34b2bca8 : 0x414786 (0x4dd0a00 0x2 0x0 0x0)
0x34b2bce8 : 0x40e528 (0x4dd0a00 0x2 0x0 0x4dd0a00)
0x34b2bd28 : 0x5a4c75 (0x4dd0a00 0x2 0x4 0x0)
0x34b2bda8 : 0x8d7e3c (0x4dd0b00 0x3f13e80 0x1 0x1)
0x34b2bdc8 : 0x8d7886 (0x3f13e80 0x1 0x1 0x0)
0x34b2be18 : 0x8d73f5 (0x3f13e80 0x5bd118 0x3e5cd80 0x10001)
0x34b2be48 : 0x412976 (0x3f13e80 0x4dd0b00 0x1 0x3ecd96)
0x34b2bea8 : 0x414219 (0x4dd0b00 0x3f13e80 0x4e07400 0x3eea2e0)
Backtrace continues...
Kernel loadable modules in backtrace (with dependencies):
com.apple.iokit.IOUSBMassStorageClass(2.0.4)@0x344d2000->0x344dbfff
dependency: com.apple.iokit.IOSCSIArchitectureModelFamily(2.0.5)@0x77f000
dependency: com.apple.iokit.IOUSBFamily(3.1.5)@0x596000
dependency: com.apple.iokit.IOStorageFamily(1.5.5)@0x798000
com.apple.driver.AppleUSBComposite(3.0.0)@0x8d6000->0x8d9fff
dependency: com.apple.iokit.IOUSBFamily(3.1.5)@0x596000
com.apple.iokit.IOUSBFamily(3.1.5)@0x596000->0x5bdfff
BSD process name corresponding to current thread: kernel_task
Mac OS version:
9G55
Kernel version:
Darwin Kernel Version 9.6.0: Mon Nov 24 17:37:00 PST 2008; root:xnu-1228.9.59~1/RELEASE_I386
System model name: iMac8,1 (Mac-F226BEC8)
panic(cpu 0 caller 0x003EB97C): "IOUSBDevice::_RESERVEDIOUSBDevice8 called\n"@/SourceCache/xnu/xnu-1228.9.59/libkern/c++/OSMetaClass.cpp:816
Backtrace (CPU 0), Frame : Return Address (4 potential args on stack)
0x34b2ba68 : 0x12b4f3 (0x45b13c 0x34b2ba9c 0x1335e4 0x0)
0x34b2bab8 : 0x3eb97c (0x49c500 0x5b5280 0x5b5280 0x8)
0x34b2bad8 : 0x5a64d4 (0x5bd118 0x8 0x34b2bb08 0x3ece8f)
0x34b2baf8 : 0x344d3b66 (0x4dd0b00 0x34b2bb1c 0x34b2bb28 0x3f0459)
0x34b2bb28 : 0x344d49ce (0x4cd9e00 0x344d9ad4 0x3ebc2e0 0x0)
0x34b2bb78 : 0x412976 (0x4cd9e00 0x4dd0a00 0x1 0x3ecd96)
0x34b2bbd8 : 0x414219 (0x4dd0a00 0x4cd9e00 0x3e9bce0 0x3e818a0)
0x34b2bc58 : 0x413a7d (0x4dd0a00 0x4417180 0x0 0x1)
0x34b2bca8 : 0x414786 (0x4dd0a00 0x2 0x0 0x0)
0x34b2bce8 : 0x40e528 (0x4dd0a00 0x2 0x0 0x4dd0a00)
0x34b2bd28 : 0x5a4c75 (0x4dd0a00 0x2 0x4 0x0)
0x34b2bda8 : 0x8d7e3c (0x4dd0b00 0x3f13e80 0x1 0x1)
0x34b2bdc8 : 0x8d7886 (0x3f13e80 0x1 0x1 0x0)
0x34b2be18 : 0x8d73f5 (0x3f13e80 0x5bd118 0x3e5cd80 0x10001)
0x34b2be48 : 0x412976 (0x3f13e80 0x4dd0b00 0x1 0x3ecd96)
0x34b2bea8 : 0x414219 (0x4dd0b00 0x3f13e80 0x4e07400 0x3eea2e0)
Backtrace continues...
Kernel loadable modules in backtrace (with dependencies):
com.apple.iokit.IOUSBMassStorageClass(2.0.4)@0x344d2000->0x344dbfff
dependency: com.apple.iokit.IOSCSIArchitectureModelFamily(2.0.5)@0x77f000
dependency: com.apple.iokit.IOUSBFamily(3.1.5)@0x596000
dependency: com.apple.iokit.IOStorageFamily(1.5.5)@0x798000
com.apple.driver.AppleUSBComposite(3.0.0)@0x8d6000->0x8d9fff
dependency: com.apple.iokit.IOUSBFamily(3.1.5)@0x596000
com.apple.iokit.IOUSBFamily(3.1.5)@0x596000->0x5bdfff
BSD process name corresponding to current thread: kernel_task
Mac OS version:
9G55
Kernel version:
Darwin Kernel Version 9.6.0: Mon Nov 24 17:37:00 PST 2008; root:xnu-1228.9.59~1/RELEASE_I386
System model name: iMac8,1 (Mac-F226BEC8)