I have a G3 450Mhz 512MB Ram. I upgraded to tiger from 10.3.9 a couple of months ago. Tiger installed perfectly. I was using a Western Digital 20gig drive that I had previously on a windows machine. I pulled my 40gig Western Digital from another windows box and wanted to do a clean install of tiger on that drive only. The installation failed 3/4 of the way through and stated that errors occured and to try installation again. I did several times and it still failed. I used disk utility and formatted repartitioned it and it still failed. Next step I took was to clone the old drive to the new one, it cloned fine, but when I went to boot from the new drive, osx booted a little slow and when at the desktop was completely unstable. Whenever I would open the finder, the dock and application bar would restart. It was completely unusable. I am stumped at this point. Is there some minimum partition size that osx needs to be installed on? I need help!