I'm a pretty new LaTeX user and I'm experiencing some problems.
I'm trying to create a presentation with the seminar package. I have a custom page style called "mystyle" that I use for all the slides in the document:
Furthermore your code snippets do not really represent a solution for others who come here by search engine. So it would be very kind to post a complete solution in form of code (regardless of the fact that you use an obsolete class).