Custom Resolution Utility (CRU)

[ksb]

Hi ToastyX and other forum members!
First HW setup:
GF GTX560 and analog TV (Sony Trinitron 29") connected to DVI-I via self-made H, V to H/V sync device to RGB input.
Seems TV supports only interlaced video.
Need to mention that there is no DDC connected as TV does not have it.
After fiddling a long time, tried using Linux and with a success. A lot of resolutions working, including example:
Modeline "720x576pali" 13.88 720 742 808 888 576 580 583 625 -hsync -vsync interlace (timings seems to be not important in this phase)
Under Windows added resolution through CRU:

(currently "Custom extension block" is empty, but tried adding resolutions under that).
After restarting driver, have a default 640x480p @60Hz in NVIDIA control panel, which on TV looks like:
Added 720x576i to NVIDIA custom resolution:

And after pressing 'test' there is a acceptable picture on TV:

After agreeing to save this resolution, back to NVIDIA customize window:

But under resolutions I don't have 720x576:

(other variant - resolution exists in a list, but switches back to 640x480 immediately after pressing apply).
Seems that driver does not like interlaced resolutions...