hi all im a longtime lurker here and ive learnt lots. i recently upgraded my system specs as follows hfx classic case. asus p8z77-m motherboard with i3-3225 with hd4000 graphics, samsung 830 64gb, wd red 3 tb, 8gb of the samsung green 1600mhz 2 sticks of 4gb. using win 7 pro and mediabrowser in media centre.every thing works fine on my monitor all movies and music playback fine so as i had everything set up i decided to plug into my onkyo 875 via hdmi on the board. enabled multidisplay it recognised my lg 50 inch plasma but it says no signal on the onkyo and i get nothing on the tv. i have the latest bios and intel drivers. what am i doing wrong help please