i have just recently got the radeon HD 7970. but fir some reason when i put my computer to sleep and then wake it up the display that is connected to the Display port wont turn on. i have to restart my computer for that display to work again. my main monitor is connected to the HDMI. my second monitor is using the DVI to VGA adaptor that came with the video card. my third monitor/ TV is using a eyeinfinity certified Display port to HDMI adaptor. my drivers are all up to date. i have no clue what would be causing this. any help would be appreciated.