NVDA error crashes Mac OSX 10.6.8. Hardware test says MBP is OK

Question

Computer locks up about once a day, always when moving my cursor around on a FireFox page. Need to shut down with power key. The hardware test on the Applications disk says my machine is OK.
3/30/15 12:28:47 AM kernel NVDA(OpenGL): Channel exception! exception type = 0xd = GR: SW Notify Error
3/30/15 12:29:07 AM kernel NVDA(OpenGL): Channel timeout!
3/30/15 12:29:07 AM kernel 0000006e
3/30/15 12:29:07 AM kernel 00200000 00008597 00000474 00000040
3/30/15 12:29:07 AM kernel 0000047e 00001b0c 1000f010 00000010
3/30/15 12:29:07 AM kernel 00000000 00000000 01000011
3/30/15 12:29:07 AM kernel 00000040 00000000
3/30/15 12:29:07 AM kernel NVDA(OpenGL): Channel exception! exception type = 0xd = GR: SW Notify Error
3/30/15 12:29:07 AM kernel 0000006e
3/30/15 12:29:07 AM kernel 00200000 00008597 00000474 00000010
3/30/15 12:29:07 AM kernel 0000047e 00001408 00000001 0000000c
3/30/15 12:29:07 AM kernel 00000000 00000000 00000403
3/30/15 12:29:07 AM kernel 00000010 00000000
3/30/15 12:29:07 AM kernel NVDA(OpenGL): Channel exception! exception type = 0xd = GR: SW Notify Error
3/30/15 12:29:11 AM kernel 0000006e
3/30/15 12:29:11 AM kernel 00200000 00008597 00000474 00000040
3/30/15 12:29:11 AM kernel 0000047e 00001408 00000001 0000000c

Answer 1

Hello,
'''Try Firefox Safe Mode''' to see if the problem goes away. [[Troubleshoot Firefox issues using Safe Mode|Firefox Safe Mode]] is a troubleshooting mode that temporarily turns off hardware acceleration, resets some settings, and disables add-ons (extensions and themes).
'''If Firefox is open,''' you can restart in Firefox Safe Mode from the Help menu:
* Click the menu button [[Image:New Fx Menu]], click Help [[Image:Help-29]] and select ''Restart with Add-ons Disabled''.
'''If Firefox is not running,''' you can start Firefox in Safe Mode as follows:
* On Windows: Hold the '''Shift''' key when you open the Firefox desktop or Start menu shortcut.
* On Mac: Hold the '''option''' key while starting Firefox.
* On Linux: Quit Firefox, go to your Terminal and run ''firefox -safe-mode'' <br>(you may need to specify the Firefox installation path e.g. /usr/lib/firefox)
When the Firefox Safe Mode window appears, select "Start in Safe Mode".
;[[Image:SafeMode-Fx35]]
'''''If the issue is not present in Firefox Safe Mode''''', your problem is probably caused by an extension, theme, or hardware acceleration. Please follow the steps in the [[Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems]] article to find the cause.
''To exit Firefox Safe Mode, just close Firefox and wait a few seconds before opening Firefox for normal use again.''
When you figure out what's causing your issues, please let us know. It might help others with the same problem.