The newest firmware for the PS3, firmware 2.01, was released to fix instability issues on the console, but it may have done the complete opposite for Call of Duty 4.

Angry gamers have reported that since updating their PS3's', they have been unable to play the online mode in the game. Of course they blame the new firmware.

Some users, however, say they managed around two hours of play after updating before the errors began to occur. Firmware related or server related? CoD 4 servers have been very temperamental over the past few days…

Both Sony and Activision had been oblivious to the problem.