Detta fick jag från en kille som ger mig pengar varje månad.
"You need to set up the new account on a different computer or edit the registry on your current PC. Either way, you will be able to play on your current PC once your account is set up. Here are the registry edit directions:
Click on Start/Run, type Regedit and click OK.
Go to the following folder:
HKEY_LOCAL_MACHINE/SOFTWARE/CALCULATOR/MODE
In the MODE folder, on the right hand side, there will be a field called UCID. Right-click on UCID and delete.
That's it. Now you should be able to reinstall Party Poker and set up the new account. Please let us know if you have any issues."
Och det funkade för mig...