As usual for Ponzy-like schemes. Bahhhh and and it fails. And a few minutes ago everything was excellent...
Now I can't withdraw even BTC! Watch out - this can be not simple site malfunctioning! May be MtGox started it's collapse. (Details
here).
Are you getting an "Invalid bitcoin address, please confirm your input" error as well?
I withdrew BTC a few hours ago... It seemed very fast and reliable. Are you sure?