Two days ago the menu bar on my iBook G4 (OS X 10.3.9) went mad. When I start the iBook the right part of the menu bar (clock, wireless connection etc.) appears from the right to the left (as it should) but when all the icons are loaded it starts loading again for quite a while and then suddenly all the icons disappear and I can't get them back on the screen until the icons eventually reappear on their own only to disappear again. It looks like the finder tries to load them again and again until it stops eventually. I don't know if this has to do with the installation of Norton AntiVirus 10. At least I noticed the problem only after the installation because the Symantec logo appeared on the right corner and more and more of the same Symantec logos appeared from the right to the left until they were replaced by the regular icons (time etc.) and then the whole thing starts again. Can anybody help?