Thanks, I need it for Photoshop; my living.
Strangely I'm not given the option of 59 or 60 Hz only 75. So I reconnected my monitor cable and I went into 'advanced settings' and 'listed all modes' I could select 1024x768 60Hz as my highest playable setting, yes playable at more than 800x600. By the way reconnecting the cable now gives me the two monitor options 59 and 60 at my native resolution; 1920x1200
Yes I had re-sized the images above to forum guide lines but have made a cropped composite below without re-sizing.
As you can see there is no real difference its as if the 800x600 setting made to my card before the game is improved in game. I note most other screen shots on this site have a similar look to my screen. I would say both settings 800x600 and 1024x768 give the same in game look, a much better look than the desktop screen (yuck) before starting the game. One thing learnt here is I must start SH3 with 60Hz. Note top section of image was SH3 vanilla and bottom is GWX3.
Yes I have a number of other games on my PC all running as they should.
Thanks all for your help