well, thanks to Raze's suggestion I have now got it working!

I simply created another local profile, linked it to my Steam account and hey presto, it saw my profile and imported saves!
It then crashed when I selected my latest save and no matter what permissions and administrative rights I changed it would not work, tried reducing video and audio quality but no better. However, used the save before that and worked!

So, not perfect but if you wish to play it that badly then creating another profile for the game seems a minor inconvenience to me!
Also, it saved fine on either autosave or my own.

Hope that helps and thanks to all for advice smile