Have you tried a different source port? Where you able to change the resolution like was suggested?
It could be that the tv and computer video need to bre in sync so it may take changing the resolution and refesh rate to where the tv will recognize the signal.
No, I am getting the picture on the TV screen as well as on my computer monitor. But the TV also gives an error message saying NO SIGNAL.
Did you check the PIP settings? Is the message in a box or over the screen? Dos the message go away?
If you have an image on the screen, it should not be showing you a no signal message.
Only place I can think that it would be from is if you have picture in picture on and that source does not have a signal.