Hello. I have 4 internal hard drives in my XP SP2 desktop. I can only see 3 of them after turning it on but after restarting once all 4 magically reappear. This has been happening for a while. What is wrong? How do I solve this? Can anyone help? Do I need to reinstall Windows? For the record, the missing one is my 4th drive and is an UltraATA/IDE device. Thank you.