Well I think I found my answer from this very helpful site click here. If one clicks on the 'Detailed report' link for any particular game, it gives the popular resolutions tested to be OK (or not), with screenshots to see how the game actually looks. Brilliant!
It appears this res is supported after all in most of the games I play :-).
Ticking this as resolved, but people are free to add comments/advice/queries if they wish. G