You don't need to have any version of Windows installed to play WoW using wine. Take a look through the information and posts at these sites: http://appdb.winehq.org/objectManager.php?sClass=version&iId=18555 http://www.wowwiki.com/Wine/Troubleshooting and see if anything there helps. If not, or if you have other questions to post back to the list/forum, please include what version of wine you are using, what version of Ubuntu, what type of video card and video driver you have, and any error messages you get when trying the program (if you get any).