Mplayer crashed,can anybody give me some help?

[zhaoxmustc at gmail.com (Armnotstrong 赵西蒙)]

hi,every one
    My Mplayer used to work well on my Debian 5.0. But it now crash just
after I start it. with the -vo xv OR -vo x11 option it just crash.But with
the -vo null option the audio works(ie. sound works). sorry if there is any
Spill or Grammar mistake ^_^