I have an IBM T400 laptop with Windows 7 that I hook to my Vizio HDTV in order to watch youtube video's. I've been using the VGA cable as the connecting cable. I use a separate cable for audio. The other day while setting it up again( I frequently disconnect my laptop for ease of use) the picture on the Vizio tv lost all color except for pink. Any idea what happened? I've gone through every setting I can think of to no avail.