An unhandled exception generally means that, in the program code, the program is not checking against every possible exception that could occur. Most likely, this exception is caused by some limit that is being exceeded (or the other way around). I would remove any files that could be associated with the program, like setting files, or even register configurations associated with that software. Also, make sure that you completely update your version of windows.
Check to make sure all of the drivers are current for your graphics hardware. Make sure that your graphics hardware works in other programs as well.
If you upgraded the Windows version, check to make sure your graphics hardware is compatible with the new version of Windows. Unhandled exception issue may be associated with graphics hardware and compatibility.
I've given up on the wiped laptop and loaded the program on a different computer using windows 8. At first it won't operate my CNC until I read on Planet-CNC forum about loading the drivers on windows 8. All working now. Will run through the calibrations again today. Thanks
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I had to wipe my computer due to virus and now can not download the USB software again. I get a "unhandled exception" error message. Any suggestions?