Help needed with LCD TV Resolution

[Domo]

I have a 42" LCD which can display at a res of 1366x768.

The manual states the following:
VGA:640x480
SVGA:800x600
XGA:1024x768

I need WXGA at 1366x769 from a PC - is this possible?
Using VGA and S-Video problems occure (VGA won't allow above 1024 and S-Video has scaling issues)

There is an HDMI input (no DVI!). Will a DVI to HDMI cable work? If not what about a gfx card with HDMI out?

Hope someone can advise!

 

[Domo]

Okay - I went and bought a DVI to HDMI cable. Then using ATI's control panel I set the display to 720p before forcing a custom res of 1232 x 684. None of it makes sense! Standard 720p doesn't fit on screen but I could not force 1366x768.
Using interlaced is pointless as the screen flickers like crazy! Has to be progressive.