I installed XP Pro on my system and now it locks up when I play mp3's and some stupid Quake game!(All you do is kill people ......ugh!) I tried the 4and1 drivers(motherboard),the detonator and or manufacturer drivers(video card),new XP sound drivers(sound card),and updated XP PRO. This is making me so frustated I feel like going out and having sex with the first person that can fix it! ( Actualy I might!) If anyone can help I would surly appreciate it.