If you open the Console application just after something goes wrong, do you see anything in the log?
Yep... many things like...
4/26/09 10:32:14 PM [0x0-0x4c04c].com.phaseone.captureone[586] Capture One(586,0xa048e720) malloc: *** mmap(size=331776) failed (error code=12)
4/26/09 10:32:14 PM [0x0-0x4c04c].com.phaseone.captureone[586] *** error: can't allocate region
4/26/09 10:32:15 PM [0x0-0x4c04c].com.phaseone.captureone[586] *** set a breakpoint in malloc_error_break to debug
then
4/26/09 10:32:15 PM [0x0-0x4c04c].com.phaseone.captureone[586] Capture One(586,0xb0d7a000) malloc: *** mmap(size=14536704) failed (error code=12)
4/26/09 10:32:15 PM [0x0-0x4c04c].com.phaseone.captureone[586] *** error: can't allocate region
4/26/09 10:32:15 PM [0x0-0x4c04c].com.phaseone.captureone[586] *** set a breakpoint in malloc_error_break to debug
4/26/09 10:32:15 PM [0x0-0x4c04c].com.phaseone.captureone[586] 2009-04-26 21:30:56> System ready
4/26/09 10:32:15 PM [0x0-0x4c04c].com.phaseone.captureone[586] 2009-04-26 22:32:14> (ERROR) Exception in CTileExecuter::lowLevelExecute, current operation=[NoiseSuppression], step=10
4/26/09 10:32:15 PM [0x0-0x4c04c].com.phaseone.captureone[586] 2009-04-26 22:32:14> (ERROR) Exception in CTileExecuter::lowLevelExecute, current operation=[NoiseSuppression], step=10
4/26/09 10:32:15 PM [0x0-0x4c04c].com.phaseone.captureone[586] 2009-04-26 22:32:14> (ERROR) Exception in CTileExecuter::lowLevelExecute, current operation=[NoiseSuppression], step=10
4/26/09 10:32:15 PM [0x0-0x4c04c].com.phaseone.captureone[586] 2009-04-26 22:32:14> (ERROR) Exception in CTileExecuter::lowLevelExecute, current operation=[NoiseSuppression], step=10
4/26/09 10:32:15 PM [0x0-0x4c04c].com.phaseone.captureone[586] 2009-04-26 22:32:14> (ERROR) Exception in CTileExecuter::lowLevelExecute, current operation=[NoiseSuppression], step=10
4/26/09 10:32:15 PM [0x0-0x4c04c].com.phaseone.captureone[586] 2009-04-26 22:32:14> (ERROR) Exception in CTileExecuter::lowLevelExecute, current operation=[NoiseSuppression], step=10
4/26/09 10:32:15 PM [0x0-0x4c04c].com.phaseone.captureone[586] 2009-04-26 22:32:14> (ERROR) Exception in CTileExecuter::lowLevelExecute, current operation=[NoiseSuppression], step=10
4/26/09 10:32:15 PM [0x0-0x4c04c].com.phaseone.captureone[586] 2009-04-26 22:32:14> (ERROR) Exception in CTileExecuter::lowLevelExecute, current operation=[NoiseSuppression], step=10
4/26/09 10:32:15 PM [0x0-0x4c04c].com.phaseone.captureone[586] 2009-04-26 22:32:15> (ERROR) Exception in CTileExecuter::lowLevelExecute, current operation=[NoiseSuppression], step=10
4/26/09 10:32:15 PM [0x0-0x4c04c].com.phaseone.captureone[586] 2009-04-26 22:32:15> (ERROR) Exception in CTileExecuter::lowLevelExecute, current operation=[NoiseSuppression], step=10
4/26/09 10:32:15 PM [0x0-0x4c04c].com.phaseone.captureone[586] 2009-04-26 22:32:15> (ERROR) Exception in CTileExecuter::lowLevelExecute, current operation=[NoiseSuppression], step=10
4/26/09 10:32:15 PM [0x0-0x4c04c].com.phaseone.captureone[586] 2009-04-26 22:32:15> (ERROR) Exception in CTileExecuter::lowLevelExecute, current operation=[NoiseSuppression], step=10
4/26/09 10:32:15 PM CrashReporter[1186] Capture One terminated unexpectedly - preparing report
4/26/09 10:32:15 PM [0x0-0x4c04c].com.phaseone.captureone[586] 2009-04-26 22:32:15.256 CrashReporter[1186:30b] Capture One terminated unexpectedly - preparing report
4/26/09 10:32:18 PM com.apple.launchd[1] (com.apple.UserNotificationCenter[1188]) Exited: Terminated
4/26/09 10:32:18 PM com.apple.launchd[1] (com.apple.UserNotificationCenter) Throttling respawn: Will start in 10 seconds
4/26/09 10:32:18 PM com.apple.launchd[182] ([0x0-0x4c04c].com.phaseone.captureone[586]) Stray process with PGID equal to this dead job: PID 587 PPID 1 ImgCoreProcess
4/26/09 10:32:18 PM com.apple.launchd[182] ([0x0-0x4c04c].com.phaseone.captureone[586]) Exited abnormally: Abort trap
4/26/09 10:32:18 PM [0x0-0x4c04c].com.phaseone.captureone arg 0: 45888 ""
4/26/09 10:32:18 PM [0x0-0x4c04c].com.phaseone.captureone Initialized
4/26/09 10:32:18 PM [0x0-0x4c04c].com.phaseone.captureone 2009-04-26 21:30:56> System ready
4/26/09 10:32:18 PM [0x0-0x4c04c].com.phaseone.captureone 2009-04-26 22:32:18> Connection failed.
4/26/09 10:32:18 PM [0x0-0x4c04c].com.phaseone.captureone 2009-04-26 22:32:18> Exiting
4/26/09 10:32:18 PM [0x0-0x4c04c].com.phaseone.captureone 2009-04-26 22:32:18> Shutting down
4/26/09 10:32:28 PM com.apple.launchd[1] (com.apple.UserNotificationCenter[1194]) Exited: Terminated
Cheers,
Bernard