Hi to all, and congratulations for kdenlive!!!
Here: http://www.youtube.com/watch?v=jemvS942IJY you can see my problem in action (seconds: 6 to 9 and 13 to 17).
When I insert a simple transition (dissolve for example) the project monitor slows down.
kdenlive 0.7.8 from sunap PPA
Intel(R) Core(TM)2 Duo CPU E7500 @ 2.93GHz
nvidia GeForce 6200 TurboCache(512MB)
the exaple video it's H.264 / AVC with 30 fps 1024x576 but I tried with divx4/divx5/mpeg ... with the same result.
What's happening? what can I try?