openSUSE 11.0 (i586)
Linux 2.6.25.20-0.1-pae i686
KDE 3.5.9 “release 49.1″

video: ATI Radeon X300 (RV370) 5B60 (PCIE)

Processor (CPU): Intel(R) Pentium(R) 4 CPU 3.00GHz
Speed: 3,014.57 MHz
Cores: 2

Total memory (RAM): 2.0 GB
Free memory: 262.2 MB (+ 1.4 GB Caches)
Free swap: 2.0 GB

Backtrace available here:

http://www.eyeunit.com/suse/kdenlive.kcrash

I can’t comment on the program at this time, as it will not start.

Video with many black borders, with 2 different sizes on all boarders, but always changing (20-30 times).
Croped the whole movie with parameters for the bigger and then for the lower borders inoder to merge the two tracks to one without any borders.
It was impossible, because the background of the windows is black and you could not see the remaining black borders on the (black) background.
To be able to configure the windows background to several standard colours would solve this problem (I found no option, generally changing background to white would solve this in most cases – videos from videocapturing show almost ever black borders, sometimes a video with very light colours at the boarder could better be processed by a red, green, .. background).
Merging at B-frames (a problem in avidemux) couldn’t be proved, because of this missing feature and the crashes.

I can confirm Jdd about the low stability of the program, but I hope it will be soon a altinative to avidemux (there missing 2 track editing and sound editing) or cindarella (stability should be here primary work too).

1.) Audio output in preview, sometimes I get absolutely no sound, sometimes sound is distorted and something it’s jerky. In the jerky case I can switch off the video in preview and the sound is ok. The same videos are playing without any problems on kaffeine, mplayer or vlc. The rendering output of the video is ok.
All attempts to change audio output configuration are pretty useless. I can’t see any difference between automatic, also, oss, oss with dma and so on.

2.) Stability
This is of course another big point. I noted when I play around with the effects (video and/or), more and more of the widgets from the gui are vanishing, for example the sliders for the adjustment of the effects are gone. Sometimes I could manage to save work before the crash, sometimes not. Anyhow the vanishing of gui elements is safe indicator shortly before the crash. In this cases the crash recovery feature is not working, which means after the restart of kdenlive I don’t get an option to recover the last project.

Nevertheless, kdenlive is a great tool and all developers did a great job.

I use opensuse 11.1 and kdenlive incl. all necessary packages from packman. Concerning the audio trouble, I wish someone can give me clear advice how to deal with all this stuff: ALSA, OSS, Phonon, xine, pulse audio, jack, mlt, sdl and so on. What is absolutly necessary, what is redundant and what is waste.

If it helps, my computer has the following:
AMD Athlon 64 X2 dual core 6000+ CPU
Gigabyte GA-MA790FX-DS5 motherboad
MSI Radeon HD3780 video card
WD Caviar 500gb hard drive &
4gb Kingston HyperX DDR2 6400 ram