Don't know whats wrong!

Under catalist control/overclock, settings are stuck on GPU clock 507Mhz, Memory clock 514Mhz. Can't change them! I unlocked, move the sliders to desired settings, but the apply button won't light up. I run test, it passes, press ok, settings stay the same why?

Already tried un-installing & re-install? 507/514 is just too slow!

Please advise!