My CD/RW not only will not open, but according to my computer, does not exist! My son told me an error window came up, something about the cable, I think, but I did not see it. He checked the wires, then later took the side panel off the tower. He said it was dirty, and he blew out a lot of dust. He also took the front off, and pulled the RW out, partially, and put it back in. As far as he can tell, everything looks right. The wires, cables, etc. We did a search, and there seems to be no trace of it, period. As my son said 'how can a computer remove a drive from itself?!' It's as if there isn't, or never has been, a CD-RW on this computer, which is a Compac Presario 5000 series. I am somewhat of a novice, my son is much more knowledgeable, but he is stumped. The icon on my desktop has also disappeared. The DVD tray still opens & closes just fine. I hope someone can help. Thanks.