Don't get upset. Think through the problem. Anger leads to the Dark Side. :P

I recommend a complete reinstall. Make sure you delete the M2TW folder after properly uninstalling the game. I had to do this as well when upgrading from 1.1 to 1.2 due to the number of mods I'd installed and other changes I'd made to the the game files.

I have not experienced this problem, and I too am using the latest patch. I'm not saying you did something wrong, but I do think it might be an intermittent install problem, and if you reinstall it, it might work right the next time.

Also, just to make sure, you are using the official patch and not the leaked pre-release one correct? :)