I have PowerMac G4 with an 80Gb hard drive that's full. I got a 250Gb HD with Acard ATA-133 Controller. New HD initialized fine and I used Disk Utility to copy Old HD to New HD. Mac will not boot from new HD - do not see new HD in startup HD choices when I boot from old HD. When I boot from old HD, the new HD shows up on desktop just fine. Tried to boot from OSX CD to install OSX on new Hard Drive and install routine did not find the new HD. What am I missing or what did I need to do for this new HD to take over as primary??