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      make sure your SDL can handle arts sound. Yet another option is to start
      mplayer with artsdsp.
 
+  <B>Q: I have an AVI that plays with grey screen with -vc odivx, and green
+     with -vc divx4 .
+  </B>A: It's not a DivX file, but an M$ MPEG4v3 . Update your codecs.conf.
+
 
   <A NAME=6.4>6.4.  Video/audio driver problems (vo/ao)