I installed sp2 on my wifes gateway 2gig pent 4 and all went smooth and still is. I have a dell 4500 and I recently replaced the mobo. I installed a gigabyte 8vm533m-rz and it ran well on sp1. when I installed sp2 , It turned off my sound in the bios and wiped out my sound drivers. When I reinstalled the sound, I put in my flight sim cd and it wouldnt read it. Anyone else had any similar problems with sp2? Any tips or advise? Am I at risk staying with sp1 on my dell?