I have a strange predicament...

I recently bought a Syntax Olevia 37-inch LCD HDTV (LT37HVS).
When I hook up my Panasonic VCR via composite inputs, the TV cannot
detect the VCR ("no signal detected"). The particularly strange thing
is that if I use the TV's Picture-in-Picture function, the VCR works,
but only in the small PIP frame. When I try to switch it to the bigger
frame, it goes blank and says "no signal detected" again.

I know that the TV's composite inputs work because when I hook up my
DVD player to them it works fine. I also know that the VCR works
because it was fine on my former 32-inch CRT tv.
The VCR only has composite outputs, so I can't try another type of
connection.

I called Syntax tech support and they had no answer other than, "it
sounds like that VCR is incompatible with our tv."

Does anyone have a more specific idea as to what the problem is?

Thanks.

M