I have an old project that I had just about given up on. It won't open in any versions of DP. It causes a crash when I try to load chunks from it. In short I thought it was toast. So, I tried opening it in DP7.1. It almost works, but the file opens to a transport control and that's it. Nothing works and no other windows will open. But then I got a surprise. The auto-save feature kicked in and saved a .autosave version and to my surprise that version opens properly.

I guess this could be a technique to try as a last resort for corrupt project files that will open but won't play.
HaHaaaaaa! Take that, you nay sayers!
Phil