I purchased a copy of Parallels their website last spring. My Mac is doing strange things and what I really want to do is save everything and just reboot my Mac and start it over like when I first got it. However I don't want to loose my Parallels or my Windows XP. I have Windows XP on a disc but I purchased Parallels on the web . Is there a way to download a working copy of Parallels so it will work after I reboot my computer? Also will doing this affect my copy of Windows XP? I am still a bit new to the Mac so any help is most appreciated.