gpu not downclocking to 2D/idle speeds

My gpu is not downclocking while on the desktop. It's pegged at a base clock of 1,110 Mhz, drawing load voltage and this idling about 10°c higher than before in Windows 7. A reboot usually fixes it.

I dont know what in Windows 8 is causing it. I have nvidia control panel set to Adaptive power management, what else is there that would effect this? I can't think of anything else, I must be missing something.

Open up task manager and see if there is any process running in the background that might utilize your GPU.