After talking to Rubini who has the same ATI card seems it runs on his WS monitor without problems, this is because his monitor has an aspect ratio of 16:9 where as mine is 16:10 ratio, he suggested I try with the d3d9.ini file set to 1280x800 and that works almost perfect however this stuffs up all mods as they are set to 1360x768!
I think nvidia has the ability to rescale, ATI don't, so it seems a combo of ATI with 16:10 monitors are going to have problems,
how hard is it to convert your mod to 1280x800 conus00?