Try disabling the Suitcase and try starting AI again.
(I've branched this thread to a new discussion, because itis definitely not the "same problem." Unfortunately it didn't bring Jacob's reply so maybe that wasn't such a good plan. Oh well...)
Larry is absolutely correct. This indicates:
Application Specific Information:
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'launch path not accessible'
*** Call stack at first throw:
0 CoreFoundation 0x0766b6ca __raiseError + 410
1 libobjc.A.dylib 0x074e05a9 objc_exception_throw + 56
2 CoreFoundation 0x0766b3f8 +[NSException raise:format:arguments:] + 136
3 CoreFoundation 0x0766b36a +[NSException raise:format:] + 58
4 Foundation 0x085f9795 -[NSConcreteTask launchWithDictionary:] + 487
5 Foundation 0x08637581 +[NSTask launchedTaskWithLaunchPath:arguments:] + 251
6 ExtensisFontManagementAICS5 0x1a5cff95 _Z19FindAndLaunchFMCorePSs + 651
that Extensis Suitcase Fusion generated the crash trying to launch it's FMCore component. Check for updates and then contact Extensis Support.