I do not know why, but recently I've been seeing applications freeze up due to CSRSS.exe. This usually happens when I'm opening a Video/ Audio effect in Vegas Pro 10, or randomly when opening pages that use flash extensivley (english.aljazeera.net/watch_now/ does it most of the time). When I click to close, it leaves me with a bug with Aero.
When I right click on the desktop I get a semi-transparent pop-up menu.

When I click on any option, the selected option gets stuck.

This happens with any right-click opened pop-up menus.
I found a solution, but it's rather annoying since I have to restart the computer. Any one else getting this?