I've just started to get blue and yellow lines/blocks while playing COH and COD4 with my saphire 3870x2 8.1 and 8.2 drivers i've reinstalled the drivers messed about with the graphical settings and the problem seems to be limited to 1920x1200 res because if i change to 1680x1050 the problem goes away,this is the third ATI card i've had that started to play up and i was wondering what part of the card would be stressed out the higher the res you go , the card runs at 60 c monitered through rivatuner