I have been using the CNTL $ LaTeX in text cells for some slide show presentations and there are some things that drive me crazy. The craziest is the \ddot function that is very ugly and very different from \dot (which could be improved but is not bad). \overset{..} is better but still not good and it doesn't always work. Any suggestions would be greatly appreciated. As things stand, my presentations will not be very good advertisements for Mathematica.