I have an ATI Radeon HD 4650 video card. I have my computer connected to my Vizeo tv through an HDMI cable. All of a sudden my computer won't mirror the image to the tv. All I get is a blank screen saver without the writing and I can't stream stations from my computer. I have not done anything to the settings to cause this.
Well, my face is bright red. I am sooooo dumb. My computer has 2 graphics cards, one on the motherboard and one in a slot. I had my HDMI plugged into the wrong one. Thanks so much for your input. Hope I didn't waste too much of your time. moosenews.