I have no idea what could be causing this problem: I have a CD-Rom set as Secondary Master and a CD-R as the Secondary Slave. Yet, when all I want to do is surf and listen to a CD using the master device, the sound distorts - it slows down to the point where it sounds the PC can't handle doing both tasks. Bizarrely the slave device has no such problems. I've tried changing cables; I've tried putting in a completely different CD Drive - to rule out a fault with the player itself - but I keep getting the same problem with the master drive. I've also tried disconnecting the slave, and letting the master drive have the whole IDE 2 channel to itself, but still no joy. This is fairly recent problem - it used to work just fine. I'm running XP on an Athlon 1.4 and I have a gig of Ram. Anyone have any ideas?