SheetCam keeps crashing

[AlanG]

Everything works fine when I load a drawing, and create new jet cutting operation. The problems occur when I select quick cut sequence and start sequence the cutting order. I get 1 of 2 messages: SheetCam has encountered an internal error, or, Runtime Error! application has requested runtime to terminate in an unusual way. I have tried uninstalling and loading the latest stable version, resetting my computer to an earlier date when I didn't have problems. Also, this computer is offline, no chances for virusus. Any suggestions would be greatly appreciated.