This is really annoying me. What could cause my screen saver to not activate? I've got it set to activate after 3 minutes. I just can't think of a reason why it's not working. I've just reinstalled Leopard (not because of this) and I had the same problem before. I did wonder if the iStat menu's were keeping the screen saver from kicking in (it monitors my CPU and memory uses so is changing constantly) but I tried uninstalling it and it continues to 'diss me'! Any suggestions? Thanks muchly.