OK, plugged in the card, took out the old sound card, installed a new 1 TB drive and a new CD-ROM, and installed Kubuntu 11.10 with the option to download updates during the installation, and to install third party sofware. Connected the HDMI cable to the card, and let 'er rip! Machine came up in Kubuntu 11.10 at 1920 x 1080 AND with digital sound working!! I had to do NOTHING other than let the installer do its thing.
NVIDIA should really be congratulated for the effort they put forth to support Linux on their cards. I don't buy anything else anymore, and this is probably the fourth NVIDIA card I've bought this past couple of years.