I use the start+L thing to lock my computer when I walk away from it...just yesterday it started to go weird when I did that though. When I press that or use the switch user button in the start menu it just shows the picture I have as my background and stays like that. The arrow is there and moves, the hdd activity light is on but I don't hear it like I normally do. I have to restart it to get it to work... I didn't change anything that I can think of or even install anything. I tried turning off the software that changes my background and does the slideshow for my screen saver and still had the problem. Any ideas on what's going on here? It's really pissing me off.