hey i just got my 7900 gt today and its working great however in Counter-Strike: Source it gets higher ping than my old 6800. the 6800 got 0-4 ms and the new 7900gt never gets below 30ms. also i checked on the frequency of the card which is supposed to be at 1630mhz memory clock and it is only at 815mhz memory clock. any ideas what could be wrong.