I have an old P3 system that I let my son use for internet browsing, email, etc. It has been rock solid for 6+ years until lately and I think the issue of not booting properly is that the master CD-ROM gave up the ghost. And so I took that out hoping that is all it will take. Here is my question (and I feel so much like a noob; I did try to google but I got nothing): Where do I place the tab to take it from slave to single configuration? As slave the tab was placed on the far left in the verticle position. Am I correct in that to make it singular I need to place it horizontally on the bottom two prongs center-right? I hope I am making myself clear. This is an old system and it has been years since setting it up and I don't have my manuals anywhere. I couldn't even access Buslink's website. Thanks for your help.