MPlayer Still Not Working

I have installed latest version of libdvdcss2,

Reading package lists... Done
Building dependency tree
Reading state information... Done
libdvdcss2 is already the newest version.
The following packages were automatically installed and are no longer required:
cddb
Use 'apt-get autoremove' to remove them.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

When I try to Play a Movie in MPlayer it says:

Either Seek Failed.........Or

Fatal Error

Error opening/initializing the selected video_out (-vo) device.

Please Help, Thank You

How did you install MPlayer? Sources or RPM packets.

Try VLC player, Dude. It's better than MPlayer.

Installed MPlayer thru Synaptic

dakota@Me:~$ mount
/dev/sda3 on / type ext3 (rw,errors=remount-ro)
proc on /proc type proc (rw,noexec,nosuid,nodev)
/sys on /sys type sysfs (rw,noexec,nosuid,nodev)
varrun on /var/run type tmpfs (rw,noexec,nosuid,nodev,mode=0755)
varlock on /var/lock type tmpfs (rw,noexec,nosuid,nodev,mode=1777)
udev on /dev type tmpfs (rw,mode=0755)
devshm on /dev/shm type tmpfs (rw)
devpts on /dev/pts type devpts (rw,gid=5,mode=620)
lrm on /lib/modules/2.6.22-14-generic/volatile type tmpfs (rw)
securityfs on /sys/kernel/security type securityfs (rw)
binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,noexec,nosuid,nodev)
/dev/hda on /media/cdrom0 type udf (ro,user=dakota)


Please help, If so...how do I fIX??

Also:
Why are my CDroms & Dvd Drives in root, where I don't have permission over them??

When I type in ls -l mplayer...Results:

total 1696
-rw-r--r-- 1 dakota admin 282 2007-10-29 19:09 access_mpcontext.h
-rw-r--r-- 1 dakota admin 17959 2007-10-29 19:09 asxparser.c
-rw-r--r-- 1 dakota admin 894 2007-10-29 19:09 asxparser.h
-rw-r--r-- 1 dakota admin 32599 2007-10-29 19:09 AUTHORS
-rw-r--r-- 1 dakota admin 35269 2007-10-29 19:09 cfg-common.h
-rw-r--r-- 1 dakota admin 11468 2007-10-29 19:09 cfg-mencoder.h
-rw-r--r-- 1 dakota admin 103 2007-10-29 19:09 cfg-mplayer-def.h
-rw-r--r-- 1 dakota admin 16838 2007-10-29 19:09 cfg-mplayer.h
-rw-r--r-- 1 dakota admin 120077 2007-10-29 19:09 Changelog
-rw-r--r-- 1 dakota admin 30376 2007-10-29 19:09 codec-cfg.c
-rw-r--r-- 1 dakota admin 1952 2007-10-29 19:09 codec-cfg.h
-rw-r--r-- 1 dakota admin 81016 2007-10-29 19:09 command.c
-rw-r--r-- 1 dakota admin 155 2007-10-29 19:09 command.h
-rw-r--r-- 1 dakota admin 2730 2007-10-29 19:09 common.mak
-rwxr-xr-x 1 dakota admin 234648 2007-10-29 19:09 configure
-rw-r--r-- 1 dakota admin 5588 2007-10-29 19:09 Copyright
-rw-r--r-- 1 dakota admin 16885 2007-10-29 19:09 cpudetect.c
-rw-r--r-- 1 dakota admin 1195 2007-10-29 19:09 cpudetect.h
-rw-r--r-- 1 dakota admin 10494 2007-10-29 19:09 cpuinfo.c
-rw-r--r-- 1 dakota admin 13826 2007-10-29 19:09 cputable.h
drwxr-xr-x 3 dakota admin 4096 2007-10-29 19:08 debian
drwxr-xr-x 6 dakota admin 4096 2007-10-29 19:09 DOCS
drwxr-xr-x 3 dakota admin 4096 2007-10-29 19:09 drivers
drwxr-xr-x 3 dakota admin 4096 2007-10-29 19:09 dvdread
-rw-r--r-- 1 dakota admin 3871 2007-10-29 19:09 edl.c
-rw-r--r-- 1 dakota admin 613 2007-10-29 19:09 edl.h
drwxr-xr-x 3 dakota admin 4096 2007-10-29 19:09 etc
-rw-r--r-- 1 dakota admin 4636 2007-10-29 19:09 find_sub.c
-rw-r--r-- 1 dakota admin 2040 2007-10-29 19:09 fmt-conversion.h
-rw-r--r-- 1 dakota admin 4080 2007-10-29 19:09 get_path.c
-rw-r--r-- 1 dakota admin 903 2007-10-29 19:09 get_path.h
drwxr-xr-x 7 dakota admin 4096 2007-10-29 19:09 gui
drwxr-xr-x 3 dakota admin 4096 2007-10-29 19:09 help
drwxr-xr-x 3 dakota admin 4096 2007-10-29 19:08 input
drwxr-xr-x 3 dakota admin 4096 2007-10-29 19:08 liba52
drwxr-xr-x 3 dakota admin 4096 2007-10-29 19:09 libaf
drwxr-xr-x 3 dakota admin 4096 2007-10-29 19:08 libao2
drwxr-xr-x 3 dakota admin 4096 2007-10-29 19:09 libass
drwxr-xr-x 12 dakota admin 12288 2007-10-29 19:10 libavcodec
drwxr-xr-x 3 dakota admin 4096 2007-10-29 19:10 libavformat
drwxr-xr-x 3 dakota admin 4096 2007-10-29 19:10 libavutil
drwxr-xr-x 4 dakota admin 4096 2007-10-29 19:09 libdvdcss
drwxr-xr-x 4 dakota admin 4096 2007-10-29 19:08 libfaad2
drwxr-xr-x 3 dakota admin 4096 2007-10-29 19:09 libmenu
drwxr-xr-x 4 dakota admin 4096 2007-10-29 19:08 libmpcodecs
drwxr-xr-x 3 dakota admin 4096 2007-10-29 19:09 libmpdemux
drwxr-xr-x 3 dakota admin 4096 2007-10-29 19:09 libmpeg2
drwxr-xr-x 3 dakota admin 4096 2007-10-29 19:10 libpostproc
drwxr-xr-x 3 dakota admin 4096 2007-10-29 19:09 libswscale
drwxr-xr-x 3 dakota admin 4096 2007-10-29 19:09 libvo
-rw-r--r-- 1 dakota admin 17992 2007-10-29 19:09 LICENSE
drwxr-xr-x 7 dakota admin 4096 2007-10-29 19:09 loader
-rw-r--r-- 1 dakota admin 11982 2007-10-29 19:09 Makefile
-rw-r--r-- 1 dakota admin 568 2007-10-29 19:09 mangle.h
-rw-r--r-- 1 dakota admin 15442 2007-10-29 19:09 m_config.c
-rw-r--r-- 1 dakota admin 4879 2007-10-29 19:09 m_config.h
-rw-r--r-- 1 dakota admin 57933 2007-10-29 19:09 mencoder.c
-rw-r--r-- 1 dakota admin 1423 2007-10-29 19:09 metadata.h
-rw-r--r-- 1 dakota admin 4251 2007-10-29 19:09 mixer.c
-rw-r--r-- 1 dakota admin 870 2007-10-29 19:09 mixer.h
-rw-r--r-- 1 dakota admin 49355 2007-10-29 19:09 m_option.c
-rw-r--r-- 1 dakota admin 16619 2007-10-29 19:09 m_option.h
drwxr-xr-x 3 dakota admin 4096 2007-10-29 19:09 mp3lib
-rw-r--r-- 1 dakota admin 165 2007-10-29 19:09 mpbswap.h
-rw-r--r-- 1 dakota admin 5476 2007-10-29 19:09 mpcommon.c
-rw-r--r-- 1 dakota admin 268 2007-10-29 19:09 mpcommon.h
-rw-r--r-- 1 dakota admin 1019 2007-10-29 19:09 mpcommon.mak
-rw-r--r-- 1 dakota admin 3871 2007-10-29 19:09 mp_core.h
-rw-r--r-- 1 dakota admin 2084 2007-10-29 19:09 mp_fifo.c
-rw-r--r-- 1 dakota admin 106 2007-10-29 19:09 mp_fifo.h
-rw-r--r-- 1 dakota admin 108870 2007-10-29 19:09 mplayer.c
-rw-r--r-- 1 dakota admin 1007 2007-10-29 19:09 mplayer.h
-rw-r--r-- 1 dakota admin 6456 2007-10-29 19:09 mp_msg.c
-rw-r--r-- 1 dakota admin 3759 2007-10-29 19:09 mp_msg.h
-rw-r--r-- 1 dakota admin 44 2007-10-29 19:09 mp_msg-mencoder.c
-rw-r--r-- 1 dakota admin 10870 2007-10-29 19:09 m_property.c
-rw-r--r-- 1 dakota admin 6345 2007-10-29 19:09 m_property.h
-rw-r--r-- 1 dakota admin 2835 2007-10-29 19:09 m_struct.c
-rw-r--r-- 1 dakota admin 3017 2007-10-29 19:09 m_struct.h
drwxr-xr-x 3 dakota admin 4096 2007-10-29 19:09 osdep
-rw-r--r-- 1 dakota admin 5815 2007-10-29 19:09 parser-cfg.c
-rw-r--r-- 1 dakota admin 128 2007-10-29 19:09 parser-cfg.h
-rw-r--r-- 1 dakota admin 3421 2007-10-29 19:09 parser-mecmd.c
-rw-r--r-- 1 dakota admin 737 2007-10-29 19:09 parser-mecmd.h
-rw-r--r-- 1 dakota admin 7589 2007-10-29 19:09 parser-mpcmd.c
-rw-r--r-- 1 dakota admin 152 2007-10-29 19:09 parser-mpcmd.h
-rw-r--r-- 1 dakota admin 20830 2007-10-29 19:09 playtree.c
-rw-r--r-- 1 dakota admin 7142 2007-10-29 19:09 playtree.h
-rw-r--r-- 1 dakota admin 21500 2007-10-29 19:09 playtreeparser.c
-rw-r--r-- 1 dakota admin 1388 2007-10-29 19:09 playtreeparser.h
-rw-r--r-- 1 dakota admin 7654 2007-10-29 19:09 README
drwxr-xr-x 3 dakota admin 4096 2007-10-29 19:09 rpm
-rw-r--r-- 1 dakota admin 39823 2007-10-29 19:09 spudec.c
-rw-r--r-- 1 dakota admin 1393 2007-10-29 19:09 spudec.h
drwxr-xr-x 6 dakota admin 4096 2007-10-29 19:08 stream
-rw-r--r-- 1 dakota admin 7741 2007-10-29 19:09 sub_cc.c
-rw-r--r-- 1 dakota admin 175 2007-10-29 19:09 sub_cc.h
-rw-r--r-- 1 dakota admin 9426 2007-10-29 19:09 subopt-helper.c
-rw-r--r-- 1 dakota admin 1463 2007-10-29 19:09 subopt-helper.h
-rw-r--r-- 1 dakota admin 67367 2007-10-29 19:09 subreader.c
-rw-r--r-- 1 dakota admin 2661 2007-10-29 19:09 subreader.h
drwxr-xr-x 4 dakota admin 4096 2007-10-29 19:09 TOOLS
drwxr-xr-x 3 dakota admin 4096 2007-10-29 19:08 tremor
-rw-r--r-- 1 dakota admin 77226 2007-10-29 19:09 unrarlib.c
-rw-r--r-- 1 dakota admin 8252 2007-10-29 19:09 unrarlib.h
-rwxr-xr-x 1 dakota admin 741 2007-10-29 19:09 version.sh
drwxr-xr-x 7 dakota admin 4096 2007-10-29 19:09 vidix
-rw-r--r-- 1 dakota admin 39515 2007-10-29 19:09 vobsub.c
-rw-r--r-- 1 dakota admin 1242 2007-10-29 19:09 vobsub.h
-rw-r--r-- 1 dakota admin 42298 2007-10-29 19:09 xvid_vbr.c
-rw-r--r-- 1 dakota admin 6367 2007-10-29 19:09 xvid_vbr.h
-rw-r--r-- 1 dakota admin 1890 2007-10-29 19:09 xvmc_render.h