Thanks for answers . Windows XP SP2, Intel Duo core 3.0 Ghz, 2 GB RAM and graphic card Geforce 8800 GTX. I had no problems with performance or loading times before updates. Kk, I attached it. Well, I did not install any Doom 3 mods, I also did not install anything after 1.02 update (not sure about 1.01). Unfortunately it did not solve my problem . Nope. No new antivirus . I tried disabling it anyway, but it did not help. I guess I will just reinstall TDM and see if it helps although I really wanted to avoid that. But I can't resist TDM's call, so I'll try it anyway . DoomConfig.txt