I need some help hooking up a second hard drive to my friend's Blue and White Power Mac G3. I tried hooking a second IDE hard drive where the Zip drive would go (it had no Zip drive). When I tried stating up the computer, OS 9 froze during startup. In OS X, the computer was VERY slow, but the hard drive did not show up on the desktop. Both hard drives are in good working order. Does anyone know what I am doing wrong? Thanks in advance!