Short story: I want to reinstall XP Home Edition. During a previous reinstall, Gateway had me do something like "write all 1's to disk" to make sure no corrupt code was still lurking about. Now they won't talk me through the process again because my system is actually working(though impaired). Can someone tell me how to do the "write all 1's to disk" and then tell me what order to load up the other CD's? Gateway provides a red "Drivers" CD, a blue "XP OS" CD, a yellow "Applications" CD and MS Office CD's. Thanks for any help in advance.