I had been using my CD-RW without any problems. I installed the Xp Service Pack 1 and exprienced problem with my games locking up. I removed the Service Pack last night and since then my drive is only reading at 10x and writing at 7x. I have enabled DMA including in the registry and even refitted the drive but without success I am on the latest firmware from Asus (as it is a new drive there is only one available anyway) I am presuming something has been removed when I uninstalled SP1 as it is since then that the problem has started. I have re-installed the XP ASPI drivers as well. I have re-installed SP1 but still the same problem My drive is an ASUS 4012A 40x12x48 My specs AMD AThlon 1.4 DDR (PC2100) 512 DDR RAM GeForce 3 Ti500 Soundblaster Audigy Windows XP (SP1) ASUS 4012A 40x12x48 Pioneer DVD-116 Any one got any ideas please?