I know you said you tried the apple forum, but did you see this thread?
iPhone won't sync movies? - AppleInsider
Here's one post from it:
Quote:
Just spoke to Apple, and they have fixed my sync movies issue. its really simple and something we should all do now and then to clear the sync history.
in Finder (on a mac) go to Applications then find iSync. Click on iSync next to the apple at the top menu bar and choose Preferences
Then click Clear Sync History.
You can then go back to itunes and sync your movies.
All sorted!
Tim
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