That happens when a peer you're connected to is using an old wallet, use getpeerinfo on the debug console to check the ip of the offending node.
The floppy game is using the latest wallet, so i doubt it is the culprit.
Well, thank you very much!
Checking the peers I discovered that more than a half was 2.0.0.5 and I spotted 3 peers on 1.0.0!!!
Weel, will study how to remove them.
Thank you again.