I'm having a very interesting problems with XP SP1. I have a Philips PSC705 soundcard installed fine. But every now and then I will got to load a media program(ie.WMP, BSplayer,Winamp) that uses the sound. It will error with something like "No sound device installed......blah..blaah" and will not be able to play sound. But if i go into Device Manager and uninstall and reinstall(without a restart) my soundcard it will then work normaly untill the next time the same thing happens. So I have tried like everything: Changed drivers Changed PCI slots Changed soundcard Changed Motherboard Changed RAM Checked for IRQ conflicts or any other hardware conflicts for that matter I realy have no clue here..Any one got something new for me to try?