This file contains no playable stream (Ubuntu 12.10) and other related troubles...

hi!!!!

I install Ubuntu 12.10 Gnome Remix, and Kdenlive have a lot of troubles...

First, I installed from repositories, but no luck Rendering: no profiles... no sound in some profiles... not rendering the project correctly (ends at the end of a MTS video, in the example...)

Later, I have install KDENLIVE from SOURCE, like these: http://www.kdenlive.org/download-source#kdenlive

But still have the problems... FIRST, no profiles for rendering... later, i do:
sudo apt-get install libavcodec-extra-53

and the profiles MP4 and others, now Available... but when I open a file, i get this:

"This file contains no playable stream (Ubuntu 12.10)"

I'm going crazy... :( My work depends on Kdenlive! :)

AVI:

//STARTING RENDERING: true , false , "/usr/bin/melt" , "atsc_1080p_50" , "avformat" , "-" , "/tmp/kde-jordi/kdenliveN29217.mlt" , "/home/jordi/llibertat.avi" , () , ("acodec=libmp3lame", "ab=384k", "ar=44100", "vcodec=libxvid", "minrate=0", "vb=12000k", "aspect=@16/9", "mbd=2", "trellis=1", "mv4=1", "progressive=0", "threads=1", "real_time=-1") , -1 , -1
Started render process: "/usr/bin/melt" "/tmp/kde-jordi/kdenliveN29217.mlt -profile atsc_1080p_50 -consumer avformat:/home/jordi/llibertat.avi progress=1 acodec=libmp3lame ab=384k ar=44100 vcodec=libxvid minrate=0 vb=12000k aspect=@16/9 mbd=2 trellis=1 mv4=1 progressive=0 threads=1 real_time=-1"
Rendering of "/home/jordi/llibertat.avi" finished

MP4:
//STARTING RENDERING: true , false , "/usr/bin/melt" , "atsc_1080p_50" , "avformat" , "-" , "/tmp/kde-jordi/kdenliveN29217.mlt" , "/home/jordi/llibertat.avi" , () , ("acodec=libmp3lame", "ab=384k", "ar=44100", "vcodec=libxvid", "minrate=0", "vb=12000k", "aspect=@16/9", "mbd=2", "trellis=1", "mv4=1", "progressive=0", "threads=1", "real_time=-1") , -1 , -1
Started render process: "/usr/bin/melt" "/tmp/kde-jordi/kdenliveN29217.mlt -profile atsc_1080p_50 -consumer avformat:/home/jordi/llibertat.avi progress=1 acodec=libmp3lame ab=384k ar=44100 vcodec=libxvid minrate=0 vb=12000k aspect=@16/9 mbd=2 trellis=1 mv4=1 progressive=0 threads=1 real_time=-1"
Rendering of "/home/jordi/llibertat.avi" finished

MP4 get the error "no playable stream".

AVI: Get sound, get video...but VIDEO CUT at end of MTS file... :( . Ends at the Red Line of these snapshot:

Any ideas???