I have Three drives on my computer (All IDE) a DVD Drive (Master Secondary) a CDRW Drive (Slave Secondary) and a new 80GB Western Digital Hard Drive (Master Primary) Now here's the problem. Now after putting the new hard drive in, Whenever I pop a CD into the DVD Drive, nothing happens. The DVD Drive is detected by Windows and the drive is in My Computer, but nothing happens. The same thing happens if I switch the CDRW to the Master and then the CDRW Drive doesnt work properly. Now the way to get a round this I've found is to make sure that there is a CD in the DVD Drive when my computer starts up. Why is that? and is there anything I can do to fix the problem?