Unable to change duration of transition

Hello forum!

I seem to have this problem often. I have yet to figure out why it happens.

I will import a QT mov video clip (usually with audio) to my sequence/timeline in FCP (6.0.2). This qt clip is one that I have exported from a different application, like Photo to Movie, or, in this most recent case, Flip4Mac.

I add the clip to the timeline. I add a still image to the timeline
ahead of the mov file. I want to do a 20 frame cross-dissolve from the still to the video clip. When I select the edit point, and add the transition, it is always 1 frame long, and I am unable to change the duration. What am I missing?

I seem not to have this problem with dealing only with stills in the timeline, and with video I import from a camera or P2 card.

Thanks

Eric

Charybdis and Scylla Productions