I have an Epox MB, XP Pro. My DVD drive has been acting up so I ordered a Sony Optiarc from newegg. I failed to notice that the new drive was a SATA drive. Now that I have it, I decided to use it since I have two SATA connections on the MB. The problem is, my BIOS recognizes the SATA DVD drive BUT XP Pro does not. The BIOS recognizes the SATA drive as IDE Channel 3 Master. I am trying to install it with the ATA DVD still installed. Does this have an effect? I have tried the Microsoft FixIt but it does not help. I manually changed the registry but still no go. Does anyone have a suggestion?