I have a powerbook G4 1.5Ghz with 1.25GB of RAM running Leopard since it came out, about a year ago I replaced the harddrive with a new 250GB, everything worked great, then I took out the 1GB stick of RAM to use in my iMac, then ordered a new 1GB (Crucial) Now, the computer is super slow, processor usage is in the 90s doing nothing, it forgets my wifi network, and webpages take 1-2 minutes to load. So I put back in the old 1GB stick, no change. Then I did a clean install on the harddrive of Leopard, same thing, then I did another clean install, same thing. I believe the new harddrive is fine, makes no weird noises, etc. I checked and the computer is reading both RAM sticks, or so says system info, (see screen shot). Any idea what made this soooo slow and how to fix it? Thank you!!!