did you use any additional program? non official client? ballancer?
well, i used the 2 Java vanity files posted in this thread. But that was days ago.
so the mystery solved? the guy got robbed because he used vanitygen without a prefix.
No, his Windows system was most likely compromised with keylogger/trojan. He didn't use vanitygen at all, afaik.
Well, he used it for at least one account with this password: es4678jhGR5.,uTTGGGdef35ujfg!7e3
But the other 2 account# look normal, so it was most likely a keylogger/trojan.