Mplayer preferences

Can anyone help. I’m using Mplayer do you know how to configure it.
When i go to fullscreen picture is very small! I tried whit aspect ratio too… It didn’t helped!

Try running the front end smplayer to control mplayer. Does that help? smplayer is packaged by the Packman packagers for opensuse:
Packman site: PackMan :: Package details for smplayer
smplayer site: SMPlayer - General Info