Hmm. I would recommend you to downgrade your drivers for now until 12.6 is stable. 12.6 is a BETA version and so is 12.7 ( both for different radeon series). BETA means that it is not 100% stable so downgrade for now until they release the final fersion.
yeah thanks I was thinking that was the best idea... didn't realise 12.6 was still at beta amd site didn't have it list as... thanks again