Ok, i've had this problem for several months now, and have seached far and wide for a solution, but have found nothing, and now its starting to be very irritating...
Pretty much randomly, when i right click something, or open an expandable menu (like the start menu) and don't click something immediately, the menu freeses, and everything slowly stops working... I can [winkey]+L into the login screen, but then when i log in, the screen never changes, other than showing a box where the frosen menu was. I can't do anything from there on. If i don't [winkey]+L, i can switch to different windows of programs, but not folders, and if i click the effected window (like if it happened in a folder, or a toolbar menu), it freeses (same if i try to click another menu). All this time, i can move the mouse, but can't do anything with it... It never kills the system, so i have to cold-boot it on my own, and then it goes back to running normal, untill the next time it randomly happens...
Any help?