Not sure it is the best forum to post this, but it might help anyone who's having the same issue.
I recently noticed that my screen would not turn off per the energy settings (no screen saver, display set to turn off after 15 minutes).
I finally figured out that this happened while my Auzentech Forte was set to the gaming mode in the console launcher. Set it back to the entertainment mode, and the display turns off again as it's supposed to.
I don't feel like testing which option in the gaming mode is actually causing this but thought I'd share.
In Entertainment mode I have EAX, CMSS-3D and Crystal sound turned off. In gaming mode, I have EAX and CMSS-3D on.