I would recommend deleting RTW and reinstalling from the beginning. Once you have RTW with the 1.5 patch. Play a game in vanilla and see if the same problem occurs there. If it works, then I would download EB 0.8 again (just in case it was a problem with the download) and install it again.

We have never had this problem before, which suggests something wrong with your setup. This way we can discover at which point it lies.

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