I know this answer is coming late, but now 8 years after the initial post, I experience the same problem. I checked on google and found these two links that might be helpful to most of the users:
- this is answer to disk space issue
and the next one is for problems with the Wine drives that could emerge:
Ultimately I managed to install the desired application (PokerStars), however I have problems with initializing - I receive error message: "Client Program has failed to initialize: Please contact the support team". I am now in communication with them and I hope the last error is not caused by Wine or the Ubuntu OS. I'm still waiting for their findings and will post new info, once it is available.