It's happened to me 3 times in a couple of weeks. Browsing, Firefox 3.5, the whole screen goes translucent white, you can see what you were doing through it but can't do a thing about it. I hide my taskbar, that rises to the occasion but none of the shortcuts work. They all recognise the cursor, but that's it. The right click menu pops up but again nothing works. Start Menu the same.
The only way out is to crash the thing with the power button and restart.
Anyone got any ideas?
Windows 7 Home Premium / Asus P5QL/EPU / Intel Core Duo E7500 2.93ghz / 4gb Corsair / NVIDIA GeForce GTS 250.