I POWER ON CONPUTER THE WORD ACER COMES UP ON SCREEN THEN SCREEN TURNS BLACK AND THE WORDS (INPUT NOT SUPPORTED) STARTS TO ROTATE ROUND THE SCREEN CAN YOU PLEASE HELP? KIND REGARDS PETER DAVID MAYS. i have an aoc and i got an error message that states input not supported---how do i come out of this????? I have a black screen with a floating white box with the error message in it>>>>>>>

Televison & Video - AOC - A15X221 15 in. LCD Television