I have been experimenting with this issue. As of right now, I think it may be my Midi interface driver. I updated to the latest driver, and had nothing but issues. I uninstalled the midi interface, and the crashing stopped. I rolled it back to the orginal driver that came with the unit when first purchased, and things seem to work. This is an important reason to burn everything on disc, such as drivers. It makes it easier to get back to where you once were. If the crashing returns, I will be back on this post.