Uh, I think I found a bug. I logged on to start betting a bit, with the 0.1 in my account, suddenly I see 0.000 balance and a 0.0995 BTC payment incoming, all I did was login, I didn't click any cashout button.
Often a session will get terminated for a variety of reasons, the bitcoins will find their way back to your wallet however. Termination is done automatically, generally to return bitcoins to people who have forgotten to cashout etc. If you logged into your address from a different IP that could also be a reason for termination.