hmm ok thanks for the info @mforan, I'll do some digging and see what i can find. We've been seeing a few reports lately of issues on .net 4.0 machines. Haven't got enough info yet to find the source unfortunately.
If you see this happen again you can always email me at garrett@repairtechsolutions.com with the debug log or open a support ticket and we'll try to get it resolved as soon as possible!
Thanks,
Garrett