Open a few seconds black screen anti-aliasing (pause)

Crysis game Call of Duty 4 * * recent conflict in the world to play these games open on the black screen anti-aliasing x2 not only close the line to do

system vista

Processor:Intel Core ( TM) 2 Duo Processor Intel (R) Core (TM) 2 Duo CPU E7200@2.53GHz
board:ASUSTeK Computer INC.P5LD2-X/1333

memory:Western Digital DDR2 SDRAM

hard drive:Western Digital WDC WD1600JS-00MHB0

card:Radeon HD 3850 * 512mb
graphics driver 8.5 -8.9 (pure and complete version of the driver) have tried to set the default is

Seems to be unstable power supply