Drop frames found in exported video.

Hai guys,

I found these drop frames in my exported movie.
Anybody knows how to solve this problem?

I tried zap RAM, trash preferences, clean out render files and re-render and re-export it.
It's still the same.

Anybody help me?

You could have just posted again in your other thread, no need to open several threads for the same problem.

Is it only happening in your exported movies?
How do the frames look in the timeline?
Are there effects on the clips with the broken frames?
What are your system specs?

I remember reading a thread from a guy with an amount of RAM below the minimum specs for FCPX having a similar problem.
Found the thread: Export Problem


And I have seen frames like this as first and last frame of C300 source files.