hey, i just have a quick question. i recently got a dvd-rw drive, so i out that in my computer, and it runs fine, the i noticed that my old cd-rw drive would fit, so i put it in my computer as well. the problem is that my computer only sees the dvd-rw. i know the power is on, and the drive reads the cd, but nothing happens on my pc. im running ubuntu 7.10, just to let you know. oh, and i know its not just the cd-rw because it was working fine before i replaced it. any help would be appreciated. thank you in advance.