iMovie 9 Stops Operating

I am teaching Broadcasting at Southeast Raleigh High School in, Raleigh, N.C. We are running iMovie 9 on 10.6 Operating System. Our Macs were just re-imaged. Now we are having a couple of problems with iMovie. When we insert transitions or text, iMovie will quit. This is not just on one computer but all of them.

We also have a problem where when we try to lay a clip into the timeline the first time we are asked what type of timeline we want to make, after the selection, nothing appears on the timeline. Normally we have to drop it in several times before it takes.

Any suggestions?