Ok, I Installed 13.12. Rebooted. Googled 'cgminer black screen'
and learned that by adding '-T' to the command line, cgminer's output is again visible but now looks like this:
Also the gpu went to 90C very quickly and hashrate dropped from 700 to 600.
So I kinda fixed it but now am looking for a way to keep heat down. mobo no help either being an asus p5wdh deluxe...