thanks, tried with the shaders but no real difference if i remember correct according to the cgminer scrypt README if you set the the thread-concurrency the shaders are irrelevant.

your settings confuse me a bit.. --gpu-threads 1 is the same as -g 1 but you have -g 2 so how many threads does it run at?

i'll give the beta drivers a try!
i bought the 5870 for 100 euro new