Just got a Asus Geforce GTX 650ti which seems to run fine plugged to my 32" 720p tv with a VGA cable. But I wanna run it off the hdmi and it did briefly then i restarted my comp. And now VGA is all that works and when i plug in my hdmi cable all video stops working. Untill I remove the hdmi cord which allows VGA signal to start up again. I have the latest drivers. My appreciation in advanced for any help.