I have downloaded doom 3 beta version and added that 1.0 alpha patch and it does the same thing when i try to play, the screen flickers really fast. i ahve a good comp 5200 video card and 1.9 ghz barton but i rembering seeing a fix that puts drivers for old video cards even though mine isnt old. Do you now how to fix this problem so i can play? Please HELP!