Thank you all for the bug reports/sleuthing. @MadK9, that is especially helpful to know. I think there must be some kind of weird video conflict between .Next and various applications that use video acceleration in some cases, at least that's my guess. I would call it just an MS bug, but obviously it's not an issue with Big Box, so there has to be something causing it. I'm still trying to figure it out.
I'm holding off on the next official release until I can get these various bugs solved. They're a challenge because most of them are very difficult to reproduce (if I can reproduce them at all), but I'll get it all worked out. Hopefully we'll see the next official release some time next week.