Logged in after downloading patch 6 & everything was fine for about 30 minutes.
Went to click on clipboard & everything went black except some large coloured circles where clipboard usually is
Tried to relog onto AH & screen is black with no clipboard & the 'aces high" logo is in washed out techni colour
When hitting ctrl/alt/delete screen appears , briefly , as normal log on screen for a few secs before minimizing. Plus the task manager menu pops up also after AH is minimized.
Ok I figured it out. I knew there was some way but could not remember.
Just deleted the vidoe8.cfg file & it is fine now.