My computer has a drive for CD-ROM's and CD-ROM burning, and then another drive which can play DVDs and also play CD-ROM's. When I purchased the computer I could insert a DVD and play it fine using this InterActual player. But then, my computer had some corruption on it and we had to reload and restore Windows XP Home Edition. Now, I try to play DVD's with this InterActual player and it has an error message when it comes up. So, I tried to play it in Windows Media Player 10 and it comes up with an error message saying that my DVD encoder isn't compatible. My guess is that when I purchased the computer at BestBuy, they installed an encoder and now that I reloaded Windows XP Home Edition the encoder is gone. Any suggestions as to what I should do?