Hi Marcel,
you can't see decorations of custom controls on your Touch Panel. It's the same as with PDAs:
http://digital.ni.com/public.nsf/websearch/CB531BF1672AA97586257142007A5630?OpenDocument
The functionality of your button will work on the Touch Panel.
Does this explain your problem? If not, please send a more detailed description of your problem and attach your project files, if they are not to big. This would be helpful for troubleshooting for me.
Best regards
oyster
National Instruments
Technical Support
National Instruments
District Sales Manager