Problem with transitions on iMovie '11
I have been encountering a little problem on iMovie 11, when adding transitions (cross fade, cross blur etc.). Although I have been able to add a couple to the current project I'm working on, I am now finding that when I try to add another it malfunctions. When you bring a transition across to the editing suite, the area you drop it into is highlighted with a green bar between the clips in question; however when I try to drop the transition in, the green bar just stays there, and the entire project crashes - I can't spool through the rest of the clips.
To make sure I don't ruin my project, I simple do Apple+Z to undo, close the programme, and then reopen it, and nothing is lost.
But I'd like to be able to use the transitions, and if you could give me an idea of what might be gong wrong, I would be very grateful.
Thank you in advance.
iMac, Mac OS X (10.6.4)