video editing question

 converted an mkv to wmv (which played normally), edited, added no effects, exported  and my video plays zoomed in like this

i cant seem to figure out

how to unzoom it, or why its playing zoomed.. every other video plays fine.

edited using adobe premiere pro cs5. and ive tried exporting in various formats, all are zoomed like this. thanks. and i hope this posted in the proper forum...

 tried many things but finally right click scale to frame size fixed it

I know this is late as hell but I would stay away from wmvs at all costs. It's just a horrible codec.