SMplayer 50% CPU and video very slower

[segora]

bug playing DVD vob, close and open SMplayer and good play

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: mplayer 2:1.0~rc4.dfsg1+svn33713-1
ProcVersionSignature: Ubuntu 3.0.0-11.18-generic 3.0.4
Uname: Linux 3.0.0-11-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 1.23-0ubuntu1
Architecture: amd64
Date: Mon Sep 19 16:57:10 2011
ExecutablePath: /usr/bin/mplayer
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta amd64+mac (20110830)
ProcEnviron:
 SHELL=/bin/bash
 PATH=(custom, user)
 LANG=fr_FR.UTF-8
SourcePackage: mplayer
UpgradeStatus: Upgraded to oneiric on 2011-09-13 (5 days ago)