Where to be begin! I have been having a number of problems. Firstly the clock and other icons disappeared from the top tool bar. Then Safari would not play videos. Then safari, system preferences started freezing open. Even when I force quit them they stay there. Or if they do go, the icon shows that it is still open and it won't reopen. I have ran onyx and it made no difference. Verified the disk, fixed permissions still no difference. Then the mac wouldn't come on from a restart. It was just freezing on a blue screen. I have opened it in safe mode (which works fine) and had a good clean out - but no improvement. It opened after about 5 attempts and took much longer then usual. Then I reinstalled the OS (archive and re-install method) from the DVD and when I turned it back on it looked exactly the same and had the same issues. After another couple of restarts its appearance has changed and it now looks like it has been reinstalled ifyswim - the desktop, apps, icons etc are back to how they were when I got it. It still is not working. Just opened system preferences and it is stuck open with the pinwheel of doom just spinning and spinning. Any ideas???