Lost HDMI Signal to Monitor

[Bastille Day]

I have lost the HDMI signal to the monitor. However, VGA works well. The Card is a Sapphire HD6950 2GB Overclocked Edition. The Monitor is a 27 inch Samsung.

I could use your collective knowledge. Is there a way I could get the HDMI working again?

Here are added specs:

Quick spec's
i5 3570K
8Gb 1600 Mushkin Ram
Windows 7
Asrock Z77 Extreme 4
650 watt Corsair psu
Noctura DH-14 HSF