I have an overclocked NVIDIA GeForce 9800 GTX/9800 GTX+, and I was able to run all the Beta versions, with great results the last three patches. Unfortunately I too had many difficulties today, and I had to go back and re-tweak my system. This is what I found that helped me; if your using a dual core AMD CPU, you need to right click your game launch icon on your desktop and click on the compatibility tab and select Windows 98/SE for the mode to use. If your using a video card below my version you should under game preferences uncheck all except Detailed Terrain. This will put you back to what you were used to using in the old version. Also I suggest in your video card's settings turn off anti-aliasing and the same under preferences in the game. Once again if your using an AMD dual core processor, and your video card allows it, ( such as mine), there is a setting that enables dual core processing for Direct X games. Turn this off. If your using a higher resolution such as 1280 X 1024 with the Hires pack, before you log into the game click on Video Settings on the clipboard and set the Max Texture Size from 1024 to 512. Now my only problem that I hope the next patch fixes is getting booted when using vox. Working together we can continue playing this game together.