When starting up kdenlive compiled from svn just now I get a continuous stream of error messages (causing nearly 100% of CPU usage):
QImage::setPixel: coordinate (0,0) out of range
QImage::pixel: coordinate (0,0) out of range
Despite that, Kdenlive seems to eventually start up, and I can load a clip or go through the configuration options. This is on debian SID, qt version 4.6.3-1.
kdenlive rev 4628 (mlt and ffmpeg are also current svn versions, but perhaps that doesn't matter)
Any ideas? Other info needed?