Actually looking further at your comment... "In my case, though, occasionally, SGP will eventually tangled up and crash. I was able to duplicate the problem on two different Windows 7 Pro laptops, both on my telescope and with nothing connected to the laptops but the SBIG camera."
My copy of SGPro has also been crashing frequently, usually randomly in the middle of generating a sequence of frames with one of those unhelpful "The program is being closed, Windows will look for a solution" type messages. There is nothing obvious in the log file. This is consistent on two machines one with Windows 7 and one with Windows 10, and with two different SBIG cameras.
This all seemed to start when I updated the SBIG drivers and to the current version of SGPro. I have been using both for several years. I think I know what I am doing, and have not observed this level of instability before. At the moment however, it seems a 50/50 roll of the dice that whenever I leave SGPro generating a sequence, whether when I check in a few hours it will still be running.
Chris