no help here
just figured i'd let you know i have the same card but ve(memory dif??)
i plug my svidio plug into an av plug the other end to my tv and walla it looks great
in fact better than my flatscreen which i totaly don't get
considering a monitors dot pitch has always been better
i did have to do some settings in the nvidia roll out menu
color and resolution and make it i think not span and not the same(sorry forgot) it lets you have seperate desk tops(backgrounds)
res cant be more than monitor if it happens to let u when you unplug the tv
and the res is to high your sol till you get a monitor that can see the settings to reset it
don't remember much i know i did a overlay with digital vibrance set at 100%(i'm colerblind) sure looked preety to me
good luck man
ps is your tv old what year is it :knock: :knock: :knock: