Well, I didn't mean to imply that it was the same protein b/c I was staring at the picture, nor that I was trying to watch it 'fold'
In the screensaver version the name of the protein is written on the side of the screen. I am not talking about frames though, but the fact that this is the third (or more) time I have been on proteinA. I understand each WU has multiple frames, and frames are the 1-100 (or whatever) that get counted toward a WU progress.
Forge's explanation makes sense, but I think he should use the word 'run' (as in: each protein has multiple runs.) Look in your logfile at the start of a WU to see what I mean.