This sort of thing has been covered a couple of times already, earlier in this thread....
Try reading from Jim's post #83, or Edgar's post #105, (a few pages back).
If you have MA3Beta.scr in more than one place, and it can't find the logo file, then you may get this problem. (If you make sure there is a duplicate of your logo file with each copy of the .scr file, then it should always work).
But as Jim says, eventually, none of this will matter!