I've built kdenlive svn checked out last night with KDE 4 devel libs on X64 Kubuntu Gutsy Tribe 3
All built successfully it would appear.
The first time I started kdenlive the workspace appears and it asks me for the video output format i would like to use, i chose PAL Widesceen after which I was told it could not create a preview window and kdenlive just closed when i clicked OK.
Now when I start Kdenlive I'm no longer asked format and just told it can't open a preview window.
I've tried looking for the location of the preferences for video format in a hidden file in my home folder but have not found one. But more importantly how do i resolve the preview window failure.
Thanks in advance.