ZSNES board

The display is old (10 year old 768p Dynex tv) and the hdmi cable is long and old (25 feet, same age) so I figure its either on the cable, or the hdmi port on the tv or the guts of the tv, or potentially the hdmi port on the card (seems least likely). Who knows?

I use an NVIDIA 1050TI and it has *all sorts of errors* across various programs when I use the HDMI output, including giving a black screen when I go full screen in ZSNES. It either goes black as soon as I do full screen, or if the application loads in full screen, it looks fine for about 10 seconds...