I think what Wolfshadw meant was are you connected to both the TV and a monitor? I mainly use nvidia with multiple displays and have to activate the second display from the control panel. I would assume it would be similar on AMD setups but don't quote me on it.
i'm just connected to the hdmi on the tv to the hdmi in the back of the pc. i went into nvidia control panel but wasn't able to activate a 2nd display. not sure how to do this
i don't see any additional boxes to check. shows "only use one display". couple of drop down boxes but no other info in them other than showing my gateway pc info