Well I just found some sort of "patch" for the alpha. It's called Doom III_Multifix, and it fixes various things like the menus, for example you don't have to go to the console to start a new game now you can go to singleplayer and it won't crash, fixes a few performance issues, I now get a total of 14-27fps now, which is quite an improvement from 2fps, if you don't have this patch I recommend you grap it. It's weighted at 2.02 megs and you can grap it either from Kazaa or you can search it on google.