Not sure if I am in the right forum but you can get me started where we may need to go. My wifes Dell 4600 has xp home. I upgraded to sp2 and the problem is when I put sp2 on, the dvd player is the only item I can find that doesn't work. When sp2 is removed everything back to normal. I have tried everything I can think of in reinstalling power dvd, interactual player, etc but there is nothing that changes. It still won't play with sp2 added. Suggestions?