What could cause graphics performance to reduce in windows 7. First I notice that FPS in starcraft 2 and borderlands has split in half. Since my system was quite old (around 5 months)and full of crap, I reinstalled it. Now borderlands is working better but not like before, Far Cry 2 likewise, and most interesting thing is that windows performance index for my 5770 has reduced from 7.4 to 7.3, both in gaming and aero. Everything else is the same as was before. Now, I tried putting old drivers, and some other things, but last big thing I did before everything started was putting new MB BIOS (asus M3A). I tried to put old one back but asus flash wont let me to put older version. My question is how to return to older BIOS and is there some settings in bios that might cause all this?