I've been working on Gary's GREAT tutorials, most recently the tree and grass one. I had been saving regularly, and even used Save As once. However, I was just about complete - actually I WAS complete - when I decided to try and add a linear transparency to the multi-bitmapped tree bottom so it would blend into the grass. All of a sudden I got some type of Exception at someplace error and the prg shutdown. I re-opened it and now everytime I try and open that file, I can see a thumbnail of a spot I was at prior to trying the linear transparency and the file will NOT open. I now get this:
http://i29.photobucket.com/albums/c2...er/_Image1.jpg

There's the thumbnail to show that at least PART of my work is there, but why can I no longer open it?
I ran CCleaner and then a registry cleaner and then restarted the whole kit and kaboodle and still the same thing.
Unfortunately, my most recent Save As was way back in the beginning.
Any ideas?
I really don't care about this particular file, but I would like to know how to prevent this in the future.