I also ran into this problem using a new Big World installation.
I solved it by just spawning "Edwin" in another area (Where the scripts mentioned above aren't causing him to de-spawn instantly..) and then I could go on as usual
On my way to reinstall again I noticed something. Can this cause an error?
In the Big World Setup under the option 'Set resolution of the game' was checked and set to 1920x1080 : but when it got to the Widescreen-mod installation I went with 1280x720.
I 'cleaned' it in accordance with some of the suggestions on the forum. (Basically what you said)
What I did was when I had completely installed BG2+ToB+the newest patch (26498 not 26499) and started a new game for both BG2 and ToB, I copied the entire folder to another harddrive.
When I 'cleaned' it I deleted the whole folder with the modded game, then I copied the backup folder back in place netting me a cleaned install, correct?
Not sure how it managed to get corrupted then.. bad luck I suppose..
Yesterday I attempted a standard Big World install that includes the Widescreen mod and everything worked fine. I went with 1920x1080 and everything looked like it should but I thought it was too small. So today I did the exact same thing as yesterday, except for starting over with a clean and patched BG2 folder again, and now I went with 1280x720. The installation went smooth without any problems (that I noticed..) but this time the colours are all messed up.
This is what it looks like Whats wrong and how do I fix it?
I've got an Nvidia graphics card, searched around the forum for a bit but couldn't find any similar problem to this.. also for some reason you're not allowed to search the forum for 'color'