Thanks for the quick reply Kabill - however it seems whatever bug it was sorted itself out. I had to try 3 clean reinstalls of the mod, but now it appears to be working jut fine. Weird, but I'm not complaining!
I have however run into a small issue. I downloaded your open doors patch, and it seems to have no effect on the UFOs at all. The other mods work fine, but the UFO doors continue to auto close at the end of each turn. It's not a huge gameplay issue, but if you have any suggestions I'd be grateful.
Anyway, thanks for some truly incredible mods, and making a great game even better!