i loaded ubuntu on dvd for test derive on win xp laptop...looked around ubuntu and decided to read more about using the dual os boot. Removed dvd. Restarted laptop in win xp and found desktop, passwords, bookmarks, etc all reverted to new install state. found my files buried in sub files. it also seems that my hard drive is now reading incorrect size (i think). help!!! how do i get things back to the way they were on win xp.