Hi,
I have this problem also sometimes! I see savename".tmp" and I directly make a new save so it is no more ".tmp" and so I didn't loose a savegame. The first time I experienced this case, I loose a savegame.
I think it is my anti-virusprogram or something. Now I know, (thanks Raze!) I put off that program when I play DD. Hopefully it didn't happen again ...
