I had the same problem before..so i'd like to help u so u can play some DOFUS
Follow this process1.Open 'Control Panel'
2.Open 'Add or Remove Programs'
3.Look for Dofus on the list of items
4.Completely remove Dofus
5.Now that Dofus is completely of your computer we can continue
6.Open
www.dofus.com7.Get the installer for Dofus
8.And then download it and your done
Yay!
(If it doesnt work then i cannot help you any further)