That helps narrow down the problem. You've got plenty of RAM and lots of disk space, so it would be something is using up your processor.

To see what apps or processes that are keeping the computer busy, check your Process Viewer (in your Applications/Utilities folder). On my G3, with LW 3.7.8 Pro Beta, LW uses ~30-60% of the CPU. That's sharing >1000 files, running as an Ultrapeer (60-some hosts showing in the Connections Pane).

With a G4, your Process Viewer should show LW using less.

If your CPU use is more, restart your machine and hold down the Shift key just after the startup to reboot in Safe Boot mode. This will turn off any 3rd party extensions . Run LW and Process Viewer again and check the CPU % again.

Any significant difference?

(btw- the 'Post Reply' button keeps related posts together. Use the 'new thread' to start a different topic. Maybe Morgwen would kindly add this thread to your previous post).