ok. I tried 12.8 and couldn't get Catalyst control host to quit crashing. 13.1 functions normally, but both cgminer(v 3.1.1 and 2.11.3) and reaper beta fail withing seconds of launching. One thing that I've noticed. I"l only using 6 6pin plugs instead of a 6pin and an 8pin plug. Would that cause an issue?
That shouldn't cause an issue.... I use 2 6 pin plugs (I assume thats what you meant?) on mine.
What are your command lines like for CGMiner? Have you successfully run CGMiner before?
If not, it's best to run it very simple with no custom settings, and then after getting it to launch correctly, you can start playing with the fun stuff like intensity, thread concurrency, overclocking, etc.