Just installed the 10.3.8 update and discovered that my eject key (F12) no longer worked on my G4 iBook (14″ 1GHz). I could eject discs using Finder though. Too bad I didn’t read this thread on ehmac.ca first!
A quick search on the Apple support site brought up the following link:
As suggested I restarted while holding down the mouse button. Now everything works fine again!