It's boxed up and being picked up tomorrow. I have a MSI 770GTX 4GB coming on the 30th. I was holding off editing/updating my post until I've put that card in. Yeah, 4GB seems overkill for 1080p but it was only £35 more than the 2GB. Thankfully I could just afford it.
Just Goldsrc. After a little googling.. the net is full of this problem including Quake 3/QL. There is talk of playing around with clocks and disabling 'powerplay'... which I tried, and using older .dlls from past drivers but I couldn't be bothered. But at the same time some people report running such games fine.
I posted at AMD and this was the only response:
http://forums.amd.com/game/messagevi...ighlight_key=y
I call utter bullshit on that theory. Just waiting until i've put the 770 in to prove the guy wrong, hopefully. He's posted that shit on other threads of the same issue. Must work for AMD.
Conclusion: Poor support for old opengl? We'll see.