Hiya everybody,
I found Kdenlive on the ubuntu forum and decided to give it a try, the user interface looks awesome and easy to use, unfortunately since I installed it, I didn't stop have issues, my first one was the rendering, I couldn't render anything at all, so I tried to fix it by trying the tips given in the forum, but it didn't work, so I tried to make a fresh new install, and since then I can't import any kind of file (music, video) in my project, from .mp3 to .ogv.
While trying to fix the rendering I must have messed something up...
I am not giving up on this software but I wish it did work after the first installation.
Does anyone have got any idea of what could cause my import problem?

Thanks in advanced for your answers

Which versions of Kdenlive, MLT and MLT++ do you have? You may also need to install the unstripped versions of FFmpeg's libraries:
http://kdenlive.org/user-manual/troubleshooting-and-common-problems/i-cannot-render-specific-format-xvid-mpeg-4-flash-it

I recommend that you delete your $HOME/.kde/share/config/kdenliverc file and restart kdenlive.

Right I must have done something very stupid...
I run this command line
sudo apt-get install libavcodec-unstripped-52 libavdevice-unstripped-52 libavfilter-unstripped-0 libavformat-unstripped-52 libavutil-unstripped-49 libpostproc-unstripped-51 libswscale-unstripped-0
then kdenlive disappeared, and now I can't install it anymore

Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies.
kdenlive: Depends: libmlt++1 but it is not going to be installed
Depends: libmlt1 but it is not going to be installed
Depends: inigo but it is not going to be installed
Depends: ffmpeg but it is not going to be installed
Recommends: dvgrab but it is not going to be installed
E: Broken packages


EDIT:
I finally was able to install it again, here is a screenshot of my config wizard
Here is what i got when I try to import a clip

kdenlive(10152) KToolInvocation::klauncher: klauncher not running... launching kdeinit
kdeinit4: preparing to launch /usr/lib/kde4/libexec/klauncher
kdeinit4: preparing to launch /usr/bin/kded4
KDE Daemon (kded) already running.
kdeinit4: preparing to launch /usr/bin/kbuildsycoca4
kbuildsycoca4 running...
kbuildsycoca4(10177) KConfigGroup::readXdgListEntry: List entry Categories in "/usr/share/applications/openoffice.org-startcenter.desktop" is not compliant with XDG standard (missing trailing semicolon).
kbuildsycoca4(10177) KConfigGroup::readXdgListEntry: List entry MimeType in "/usr/share/applications/openoffice.org-startcenter.desktop" is not compliant with XDG standard (missing trailing semicolon).
kdeinit4: preparing to launch
kdeinit4: preparing to launch
kdenlive(10152) AddClipCommand::redo: ---- redoing action
kdenlive(10152) ProjectList::slotAddClip: Adding clip with groupid: ""
kdenlive(10152) Render::getFileProperties: / / / / / / / / ERROR / / / / // CANNOT LOAD PRODUCER:

oh and by the way, in the render options, all the video codecs seem to be supported (I can't try to render because I can't import any file)