I use dropbox on multiple computers. one of the computers is running jungledisk to backup whole dropbox content. The problem is both services work on top of amazon cloud but I will eventually resolve this issue too.
I wish I found out about this within 30 days of my file getting corrupted. Strangely enough I posted my issue on the Dropbox forums and a Dropbox admin didn't mention this, he just said it's a problem on Keepass' end.