As the miktex package repositories were corrupt since last night, I couldn't run the example. Now that they are back online, I still can't run it. I found several unbalanced braces. But there were more problems with your code. To come to a solution, follow the advice of Luis and read the FAQ in the powerdot documentation (it says something about nodes and align in combination with \pause). Maybe Luis can share the code that he got to work, that will save all of us some time. -Hendri.