No Signal on OTA ABC with ATI HDTV Tuner

[BiGhItTeR]

I have been getting ABC on my ati hdtv tuner and antenna great since I've had this tuner and antenna. Suddenly yesterday and today it simply says no signal on abc and doesn't even come in and cut out as if the signal was weak. No signal whatsoever. I really need some help, any ideas would be great.

[jmet]

Check all your connections.