Hi stouthm, I also have this red dot come up in various routes in 2010, S & C, Murchison and UMR2010, and the message about script errors etc However I just close the screen and it and it goes away for the rest of the session. I have never noticed any degradation or problems in the game.
This issue also came up some months ago and the advice then from members was just to ignore it and close it out.
To try and fix it is probably not worth the effort. What difference would you see if the game was working OK before hand anyway as mine do?
Cheers