Bootup problems can be among the most frustrating for computer users, and they can be among the most difficult to diagnose. Luckily, XP includes a built-in utility, MSCONFIG, which can help you troubleshoot those problems. Many casual computer users don't even know it's there, since it doesn't show up in the Start menu. And others who have discovered it may not be sure how to use it to full advantage. Bill Detwiler demonstrates what you can do with this tool in a video at