FCPX's Mask effect does not adjust!

Hello Everyone,

I am trying to use the matte effect to cut out the edges of a shot in FCPX 10.0.5.

I have a basic clip in the main storyline. I have a connected clip above it. I have selected the upper clip and applied the Mask effect to load it. It now shows in the viewer with the four adjustment circle at the corner of the effect in the viewer. So, far so good. However, any attempt to move the four corners circles does nothing. They each show a little "+" sign in them when clicked but do not move so I cannot adjust the mask...

I have trashed FCPX prefs, and rebuilt the permissions and restarted 2x. Nothing helped.

What am I doing wrong? Any help is greatly appreciated.

Thank you.

~Shea A.J. Comfort

What format is your project and media? The mask tool won't work in standard definition.

All the best,

Tom

"Final Cut Pro X for iMovie and Final Cut Express Users" from Focal Press
"Complete Training for FCPX" from Class on Demand
Class on Demand DVDs "Complete Training for FCP7," "Basic Training for FCS" and "Final Cut Express Made Easy"

Well, my project is in SD, so I guess that is the "problem"? Seems really dodgy that that would be the case, as I am sure there are more than just myself who still are using an SD camera (until we can upgrade) and would need to be able to use a mask in FCPX... wow.

Thanks for the third-party recommendations and everyone's help.

I appreciate it.

~Shea

My project is HD.