As it is no longer your drivers im a bit offtopic, sry.
Anyway, after some nice hours of gaming (sauerbraten) it looks like my old friend the lockup is back. maybe related to some "handbrake" activity...this time i looked into the console (system log) and copied the relevant messages between the "hickups"
my (little) hope is that you may have another hint for me noob?
cheers,
schwoarz
15.02.09 22:59:39 SecurityAgent[101] Login Window done
15.02.09 22:59:39 loginwindow[51] Login Window - Returned from Security Agent
15.02.09 22:59:39 loginwindow[51] USER_PROCESS: 51 console
15.02.09 22:59:39 com.apple.launchd[1] (com.apple.UserEventAgent-LoginWindow[97]) Exited: Terminated
15.02.09 22:59:39 /System/Library/CoreServices/coreservicesd[77] SFLSharePointsEntry::CreateDSRecord: dsCreateRecordAndOpen(schwoarzbart's Public Folder) returned -14135
15.02.09 22:59:39 /System/Library/CoreServices/coreservicesd[77] SFLSharePointsEntry::CreateDSRecord: dsCreateRecordAndOpen(Downloads) returned -14135
15.02.09 22:59:39 WindowServer[81] CGXRestoreCredentials: seteuid() failed; errno 1; Session 256, EUID 88, old UID 88, request UID 88
15.02.09 22:59:40 /System/Library/CoreServices/Finder.app/Contents/MacOS/Finder[115] fcntl F_SETFD failed
15.02.09 22:59:42 kextd[10] writing kernel link data to /var/run/mach.sym
15.02.09 23:03:06 hdiejectd[161] running
15.02.09 23:04:03 /System/Library/CoreServices/Finder.app/Contents/MacOS/Finder[115] StatusMonitor::volumesChangedCallBack returned -47
15.02.09 23:04:50 ntpd[45] time reset -0.252123 s
15.02.09 23:10:27 kernel NVDA(OpenGL): Channel exception! status = 0xffff info32 = 0xd = GR: SW Notify Error
15.02.09 23:10:27 kernel 0000000c
15.02.09 23:10:27 kernel 00100000 00008297 00000472 00000000
15.02.09 23:10:27 kernel 0000047e 00001b0c 5000f010 00000003
15.02.09 23:10:27 kernel 00000000 00000000 00000000
15.02.09 23:10:27 kernel 0000000c
15.02.09 23:10:27 kernel 00100000 00008297 00000472 00000000
15.02.09 23:10:27 kernel 0000047e 00001b0c 5000f010 00000003
15.02.09 23:10:27 kernel 00000000 00000000 00000000
15.02.09 23:10:40 kernel NVChannel(Display): Graphics channel timeout!
15.02.09 23:10:52 kernel NVChannel(Display): Graphics channel timeout!
15.02.09 23:11:04 kernel NVChannel(Display): Graphics channel timeout!
15.02.09 23:11:15 kernel NVChannel(OpenGL): Graphics channel timeout!
15.02.09 23:11:27 kernel NVChannel(Display): Graphics channel timeout!
15.02.09 23:11:27 /usr/sbin/spindump[215] process 179 is being monitored
15.02.09 23:11:39 kernel NVChannel(Display): Graphics channel timeout!
15.02.09 23:11:39 /usr/sbin/spindump[215] process 179 is being no longer being monitored
15.02.09 23:11:52 kernel NVChannel(Display): Graphics channel timeout!
15.02.09 23:12:04 kernel NVChannel(OpenGL): Graphics channel timeout!
15.02.09 23:12:15 kernel NVChannel(Display): Graphics channel timeout!
15.02.09 23:12:16 /usr/sbin/spindump[220] process 179 is being monitored
15.02.09 23:12:16 /usr/sbin/spindump[220] process 179 is being no longer being monitored