[murphyv310]

Hi.
Well some progress and some steps back. I dissected a lead and made up the interface with the exception that I terminated each RGB lead with 100r to ground and plugged in at that point, I was greeted with VGA 2 unknown monitor so I then finished the interface, connected the output to a modulator which does both UHF & VHF, at this point I tried without modeline changes, indeed my Sony had three desktops and rolling frame...... All good.
I then added in the modeline for 625 and it saved after reboot. Problems though it only works if you select screen 2, the main goes blank for 20 seconds then reappears, the resultant picture on the Sony is grim although locked up its low in level, smeary and with overshoot. It won't work with duplicate screens etc.
I also tried 405 and it won't work as 377 is an error.
Help needed as I'm no PC Genius