Quicktime Player won't play Sketchup animations

After switching to Lion, Quicktime player renders animation .mov files exported from Sketchup as just black. I can get the movie to play by importing the .mov file into Final Cut Express, then re-exporting it as a .mov from that program. After doing that Quicktime Player plays the movie okay. What gives? Using OS10.7.2, Quicktime 10.1, and Sketchup 8 on a Mac Pro.