Really guys, if you dig into a code base anyway, you may as well dig into Clockwerk. A lot about the timeline can and should be reworked and improved. It's a solid code-base and good starting point for such work. You have a relatively stable application to start with and explore. Clockwork does have bugs, but most of them result in weird behavior or graphical glitches (for example animating transformations and the like), and not in crashes. The multi-threaded architecture that it employs does work stable. Best regards, -Stephan If I could get it to run, I would try it out and see how the navigation is. I cannot stress how important navigation is in the design of media editing software. Sean