Vizio 32 inch television is giving me problems...

Question

i recently purchased my vizio 32 inch television and when i first connected it it was working fine but now after a day or so the screen started changing to different components on its own but now all together it is showing no display. when ever there is a signal to be displayed the screen just shows black. i can hear the audio from the television but i cant see anything. when i change the input to something thats not connected like component when it trys to show the no signal message it starts flickering black and returns to that screen again because im guessing its having trouble displaying the image but when the no signal message leaves it just stays blue and it doesnt change black at all im guessing cause it is not trying to display anything. if anyone knows how to resolve this please let me know as soon as possible and thank you