A lot of people are complaining about things that do not work correctly for them within Windows 7. Here is one thing you can do to give yourself quick access to a proven operating system (OS): From a clean hard drive, load XP first, and then load Windows 7 last. Just like with Vista, you will see far fewer problems dual booting these OS's if you load XP first. I have used this setup through the various Windows 7 builds and it works great. Also, I suggest you do not upgrade your OS. Always complete a fresh build from scratch. If you follow this method, you will be able to overwrite your Windows 7 partition (as new builds are released) without negatively affecting your XP partition. I have done this about seven times with no problems. Good luck!