I recently built a system and put xp pro on it. Everything was going fine until I decided to reformat. Upon doing so and trying to reinstall windows, it hangs at the boot screen (blue bar goes across twice or so). The installation did not finish, and i can never get it to no matter what i try. When going to safe mode it hangs at mup.sys. I can't disable it, I've switched out all the hardware i could, tried different hdds, used a hdd with xp working fine on it, even rebuilt the system, but I always get the same problem. I've tried almost everything I can think of save going back to 98. At the moment I've got a $2000 paper weight. If you need to know any more details just ask, any help will be greatly appreciated.