» Thu Dec 31, 2009 2:16 am
Same here. Occasionally, I experience exactly the same lockups. Firstly, the game freezes, and a few seconds later the whole screen turns green, yellow or any other color, and there's that buzzing sound coming from the speakers.
P.S. Using Intel Core 2 Duo E7400 3.50 GHz, 2 gigs of DDR2 RAM, AMD Radeon HD 4650 512 MB GDDR3.