Quote:

QUOTE:
HDMI is a forever challenging world. You have a new card and probably an old cable. Try a new cable and get the highest rated one they have - I can't remember all the version numbers, just get a "high speed" one from a reputable source.

Thanks for responding.

The cable I'm using and which worked with the previous computer is high quality, but perhaps you're right about the new card/old cable idea. If I can't find another solution, then perhaps I will get a new cable, but it will have to be 9 feet long because of the relative positions of the PC and the TV.

As I wrote to another commenter, right now, the more important issue is this one: every time I plug the HDMI cable into the PC, the PC monitor goes black. And when I unplug the HDMI cable, the PC monitor comes back. While the PC monitor is black, the only thing on the TV is the 'No signal' message. It appears that the PC tries to use the TV as the primary display, even though the PC says that it does not detect any display other than the Planar monitor.