HI guys i have a custom gaming pc and recently upgraded my motherboard. After the upgrade i updated the BIOS and graphics card. previously the desktop was running through my 55inch tv, now not only will it not throw to the tv it wont even allow HDMI over a standard monitor? the only thing it allows is DVI? iv tried all the settings on both the screen and tv with no effect over HDMI its as if they arnt even connected saying "no signal". im extremely frustrated and just don't know what to do. please help