My desktop is an HP Envy h8-1534. It is currently connected to an HDTV.
I just attempted to load the catalyst control center to tweak my graphic settings and find that none of the normal settings are available. I'm unable to so much as change my resolution, let alone anything more advanced. I'm not exactly sure when this happend as I don't go into those settings all that often. However, if I had to guess, I would put the blame on upgrading to windows 8.1 a couple weeks ago.
I'm not sure what to do now but it is kind of infuriating! I have several game I'd like to run that only work in 16 bit color mode and I have no way of changing that now.