Intel HD4000 / Gigabyte HDMI output stopped working? DVI still works

I have an Intel 3570k using the onboard HD4000 graphics. I've had this system for just over a year now and I've been using the HDMI output without issues. I went to turn on my computer this morning and there was no picture... my 32" LCD displays No Signal. Had a DVI to HDMI cable lying around and tried the DVI output on my Gigabyte board and that works fine. Tried a different HDMI cable and still no signal. Is the issue with the GPU or the motherboard's HDMI port?

Gonna try re-installing the drivers. (edit: nope... didn't work)