I have a Gateway 2000 4DX2-66 and when I got the system it seemed like the cd drive wasn't working. I pulled everything out, cleaned and and put it all back in. I thought I had everything hooked up properly, but that is where the problems began. When the hard drive and cd drive are plugged in together (cd drive on the end, hard drive in the middle) with cd listed as slave both don't work. I unhook the cd and remove the jumper from the hard drive and it boots just fine. I have tried every combo of master/slave and it just makes the hard drive not work. Any thoughts?