Ok , now have a half decent picture, degauss issue aside.
Have d/led the test apps you mentioned so will run them to try and find optimum configuration.
Got a strange issue with the ATI config app tho - it fails upon windows boot everytime. It was the one supplied for the ArcadeVGA card. QuickRes is loaded anyway so can pick resolutions from there, I just thought the ATI app may have allowed me to run the screen and my LCD monitor at different resolutions, handy for setting things up. Will investigate on the Ultimarc site...
Thanks again for your help, very appreciated..
Slarti