I added a whole bunch of passwords to my database file under OSX 10.5. When trying to open the file on Windows XP I get the messgage: "The following error occured whilt opening the database: Wrong Signature"
Has anyone else had this happen? Is there a fix or is this not truly a cross platform product.
I was having the exact same problem as patricktaschler (PC to Mac). I ended up fixing it by saving as KeePass KBD (1.x) on the PC, copying that db to my Mac, then File>Open Database with KeePassX on my Mac. Hope it works for others.