I have noticed recently that the only applications/software that is working on my iBook G4 (running MacOSX 10.3.9) are: Firefox, Microsoft, certain games, but when I try iPhoto, iTunes, realplayer, safari, textedit; I just get the spinning ball and when I click on icon on the dock it says "application not responding". I have tried the disk utility and repaired permissions but still have problems. I also downloaded new version of Yahoo Messenger and other software, they load and when I try to click on the icon, nothing happens. Please HELP! Thanks.