I've done some test already, it's very easy to remove the INI files that control the lights, this did take my just 5 minutes to do and this is on my current save game:-
So what I've decided to do, is but together a small update pack for anybody who downloaded version 1 so it does not mess up any saves, and just re-upload a version 2 with the improved lighting files. I will be working on this the moment I get chance.
The end of the day, most of you reading this will understand some of the problems you can get with worlds, it very easy to overlook something. We don't have the luxury of a team of play tested like EA have. Saying that have you seen all them floating trees near the sphinx in Egypt holiday location, somebody in EA missed that.