kdetv is not working after mplayer

hi all. i am using on suse 10.0 kde 3.4 i am using mplayer to show videos. after i opened mplayer and watched a video. kdetv (also XawTv) is working but with black screen. (i can heard sound.) finding the job with efe@Blackbeauty:~> ps aux | grep mplayer efe 10592 0.0 0.1 1872 672 pts/1 S+ 00:48 0:00 grep mplayer i tried this but there is no mplayer process. i can watch tv after restarting my computer what can i do for this problem? regards.