Inno3D 7600 GS Output to widescreen TV using SVideo

I have just purchased and installed this card in an XP system and loaded the
supplied driver (94.24).
I downloaded the 162.18 driver from the web site but have not loaded this
yet as a friend who has this same card told me that there were some problems
with custom resolutions with the newer drivers.

The only output I have on this PC is a widescreen TV with an SVideo
connection. The TV is a PAL system and is capable of a 100Hz refresh rate.

My question is how do I get a widescreen resolution output to the TV without
getting desktop panning. I was looking for a resolution of about 1280x720
or better as anything less would have too much clutter on the screen. (Yes
I would like 1920x1080 but with a CRT display this would be pushing it)

I did manage to get it up once by fiddling with different settings but I
fiddled some more and lost it and couldn't get it back. When this worked it
was at a high resolution and I tried reducing the resolution so I could read
the text (I should have just changed font size :-( )

Thank You