when the game CTD it's only using 600MB, and my total memory usage of the entire computer was only at 1.6GB, not even close to 3GB. CPU was running at 50%, distributed between core 0 and core 1...
I have a feeling it's something to do with the new display driver update. Don't know why though :/
Despite what game developers tend to advise, the newest display drivers aren't always best. Some graphics cards are more suited to certain driver versions, and some programs work better with certain driver versions...and sometimes, there is no overlap between what your card wants and what the program in question wants.