Increasingly unstable MBP with 10.5.6
1. After the screensaver has been on, I can't get "back in". When I move the cursor around I only get a black screen with the "colored thinking-circle".
2. Suddenly applications just start hanging. When I left Activity Monitor open it said that systemuiserver was not responding, and after that all apps I try to do something with hangs.
My Mac has been nice and stable, but this suddenly started happening today. It has been running stable in 10.5.6 up until now.
MacBook Pro, Mac OS X (10.5.6)