I don't know if this means anything but there seems to be a lot of warnings...
22/02/13 1:45:57.722 PM com.apple.SecurityServer[15]: Session 100014 created
22/02/13 1:45:59.318 PM com.apple.dock.extra[183]: [Warning] Caught exception: *** -[__NSPlaceholderDictionary initWithObjects:forKeys:count:]: attempt to insert nil object from objects[2] name: NSInvalidArgumentException reason: *** -[__NSPlaceholderDictionary initWithObjects:forKeys:count:]: attempt to insert nil object from objects[2] userInfo: (null) in function: -[IMChat _postNotification:userInfo:]
22/02/13 1:45:59.319 PM com.apple.dock.extra[183]: [Warning] 1 IMFoundation 0x00007fff8f12ebe2 IMLogBacktraceToDepth + 69
22/02/13 1:45:59.319 PM com.apple.dock.extra[183]: [Warning] 2 IMCore 0x00007fff8e4e3281 IMPersonStatusComparator + 213984
22/02/13 1:45:59.319 PM com.apple.dock.extra[183]: [Warning] 3 IMCore 0x00007fff8e4feecc IMFilterSiblingsForCapability + 24989
22/02/13 1:45:59.319 PM com.apple.dock.extra[183]: [Warning] 4 CoreFoundation 0x00007fff98aa963c __invoking___ + 140
22/02/13 1:45:59.319 PM com.apple.dock.extra[183]: [Warning] 5 CoreFoundation 0x00007fff98aa94d7 -[NSInvocation invoke] + 263
22/02/13 1:45:59.319 PM com.apple.dock.extra[183]: [Warning] 6 CoreFoundation 0x00007fff98aa96a9 -[NSInvocation invokeWithTarget:] + 57
22/02/13 1:45:59.319 PM com.apple.dock.extra[183]: [Warning] 7 IMCore 0x00007fff8e4c3d7b IMPersonStatusComparator + 85722
22/02/13 1:45:59.319 PM com.apple.dock.extra[183]: [Warning] 8 CoreFoundation 0x00007fff98aa4737 ___forwarding___ + 775
22/02/13 1:45:59.319 PM com.apple.dock.extra[183]: [Warning] 9 CoreFoundation 0x00007fff98aa43b8 _CF_forwarding_prep_0 + 232
22/02/13 1:45:59.319 PM com.apple.dock.extra[183]: [Warning] 10 CoreFoundation 0x00007fff98aa963c __invoking___ + 140
22/02/13 1:45:59.319 PM com.apple.dock.extra[183]: [Warning] 11 CoreFoundation 0x00007fff98aa94d7 -[NSInvocation invoke] + 263
22/02/13 1:45:59.319 PM com.apple.dock.extra[183]: [Warning] 12 CoreFoundation 0x00007fff98aa96a9 -[NSInvocation invokeWithTarget:] + 57
22/02/13 1:45:59.320 PM com.apple.dock.extra[183]: [Warning] 13 IMFoundation 0x00007fff8f12b5d5 im_local_object_peer_event_handler + 7128
22/02/13 1:45:59.320 PM com.apple.dock.extra[183]: [Warning] 14 IMFoundation 0x00007fff8f12b6b3 im_local_object_peer_event_handler + 7350
22/02/13 1:45:59.320 PM com.apple.dock.extra[183]: [Warning] 15 IMFoundation 0x00007fff8f12b767 im_local_object_peer_event_handler + 7530
22/02/13 1:45:59.320 PM com.apple.dock.extra[183]: [Warning] 16 Foundation 0x00007fff8c1f3677 __NSThreadPerformPerform + 225
22/02/13 1:45:59.320 PM com.apple.dock.extra[183]: [Warning] 17 CoreFoundation 0x00007fff98a35101 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17
22/02/13 1:45:59.320 PM com.apple.dock.extra[183]: [Warning] 18 CoreFoundation 0x00007fff98a34aed __CFRunLoopDoSources0 + 445
22/02/13 1:45:59.320 PM com.apple.dock.extra[183]: [Warning] 19 CoreFoundation 0x00007fff98a57dc5 __CFRunLoopRun + 789
22/02/13 1:45:59.320 PM com.apple.dock.extra[183]: [Warning] 20 CoreFoundation 0x00007fff98a576b2 CFRunLoopRunSpecific + 290
22/02/13 1:45:59.320 PM com.apple.dock.extra[183]: [Warning] 21 HIToolbox 0x00007fff95b780a4 RunCurrentEventLoopInMode + 209
22/02/13 1:45:59.320 PM com.apple.dock.extra[183]: [Warning] 22 HIToolbox 0x00007fff95b77e42 ReceiveNextEventCommon + 356
22/02/13 1:45:59.320 PM com.apple.dock.extra[183]: [Warning] 23 HIToolbox 0x00007fff95b77cd3 BlockUntilNextEventMatchingListInMode + 62
22/02/13 1:45:59.320 PM com.apple.dock.extra[183]: [Warning] 24 AppKit 0x00007fff94520613 _DPSNextEvent + 685
22/02/13 1:45:59.320 PM com.apple.dock.extra[183]: [Warning] 25 AppKit 0x00007fff9451fed2 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 128
22/02/13 1:45:59.321 PM com.apple.dock.extra[183]: [Warning] 26 AppKit 0x00007fff94517283 -[NSApplication run] + 517
22/02/13 1:45:59.321 PM com.apple.dock.extra[183]: [Warning] 27 AppKit 0x00007fff944bbcb6 NSApplicationMain + 869
22/02/13 1:45:59.321 PM com.apple.dock.extra[183]: [Warning] 28 XPCService 0x00007fff934e8d15 xpc_service_main + 433
22/02/13 1:45:59.321 PM com.apple.dock.extra[183]: [Warning] 29 com.apple.dock.extra 0x000000010e0fa744 com.apple.dock.extra + 5956
22/02/13 1:45:59.321 PM com.apple.dock.extra[183]: [Warning] Exception: *** -[__NSPlaceholderDictionary initWithObjects:forKeys:count:]: attempt to insert nil object from objects[2]
22/02/13 1:45:59.322 PM com.apple.dock.extra[183]: [Warning] Symbols: (
0 CoreFoundation 0x00007fff98ab60a6 __exceptionPreprocess + 198
1 libobjc.A.dylib 0x00007fff912263f0 objc_exception_throw + 43
2 CoreFoundation 0x00007fff98a7a777 -[__NSPlaceholderDictionary initWithObjects:forKeys:count:] + 119
3 CoreFoundation 0x00007fff98aa7f99 +[NSDictionary dictionaryWithObjects:forKeys:count:] + 57
4 iChatDockTile 0x000000010f6d54da iChatDockTile + 38106
5 iChatDockTile 0x000000010f6d5a2a iChatDockTile + 39466
6 CoreFoundation 0x00007fff98a6847a _CFXNotificationPost + 2554
7 Foundation 0x00007fff8c1a9846 -[NSNotificationCenter postNotificationName:object:userInfo:] + 64
8 IMFoundation 0x00007fff8f1376ee IMCleanupPhoneNumber + 1099
9 IMFoundation 0x00007fff8f137691 IMCleanupPhoneNumber + 1006
10 IMCore 0x00007fff8e4e3196 IMPersonStatusComparator + 213749
11 IMCore 0x00007fff8e4feecc IMFilterSiblingsForCapability + 24989
12 CoreFoundation 0x00007fff98aa963c __invoking___ + 140
13 CoreFoundation 0x00007fff98aa94d7 -[NSInvocation invoke] + 263
14 CoreFoundation 0x00007fff98aa96a9 -[NSInvocation invokeWithTarget:] + 57
15 IMCore 0x00007fff8e4c3d7b IMPersonStatusComparator + 85722
16 CoreFoundation 0x00007fff98aa4737 ___forwarding___ + 775
17 CoreFoundation 0x00007fff98aa43b8 _CF_forwarding_prep_0 + 232
18 CoreFoundation 0x00007fff98aa963c __invoking___ + 140
19 CoreFoundation 0x00007fff98aa94d7 -[NSInvocation invoke] + 263
20 CoreFoundation 0x00007fff98aa96a9 -[NSInvocation invokeWithTarget:] + 57
21 IMFoundation 0x00007fff8f12b5d5 im_local_object_peer_event_handler + 7128
22 IMFoundation 0x00007fff8f12b6b3 im_local_object_peer_event_handler + 7350
23 IMFoundation 0x00007fff8f12b767 im_local_object_peer_event_handler + 7530
24 Foundation 0x00007fff8c1f3677 __NSThreadPerformPerform + 225
25 CoreFoundation 0x00007fff98a35101 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17
26 CoreFoundation 0x00007fff98a34aed __CFRunLoopDoSources0 + 445
27 CoreFoundation 0x00007fff98a57dc5 __CFRunLoopRun + 789
28 CoreFoundation 0x00007fff98a576b2 CFRunLoopRunSpecific + 290
29 HIToolbox 0x00007fff95b780a4 RunCurrentEventLoopInMode + 209
30 HIToolbox 0x00007fff95b77e42 ReceiveNextEventCommon + 356
31 HIToolbox 0x00007fff95b77cd3 BlockUntilNextEventMatchingListInMode + 62
32 AppKit 0x00007fff94520613 _DPSNextEvent + 685
33 AppKit 0x00007fff9451fed2 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 128
34 AppKit 0x00007fff94517283 -[NSApplication run] + 517
35 AppKit 0x00007fff944bbcb6 NSApplicationMain + 869
36 XPCService 0x00007fff934e8d15 xpc_service_main + 433
37 com.apple.dock.extra 0x000000010e0fa744 com.apple.dock.extra + 5956
)
22/02/13 1:50:19.792 PM WindowServer[75]: Created shield window 0xe1 for display 0x042801c0
22/02/13 1:50:19.792 PM WindowServer[75]: device_generate_desktop_screenshot: authw 0x0(0), shield 0x0(0)
22/02/13 1:50:19.803 PM WindowServer[75]: device_generate_lock_screen_screenshot: authw 0x0(0), shield 0x0(0)
22/02/13 1:50:23.000 PM kernel[0]: 5731.480585: ar9300WowEnable: Skip PCIE WA programming