Choppy video?

[Alan Simon]

I am in the process of writing an application that displays AVI video  
loops, each a second or two in duration.  When the video plays back,  
it appears that some of the frames are being skipped, and I get a  
choppy appearance.

The playback machine is a 3 GHz Pentium with 1GB of memory, so I  
don't think the PC is the problem.  Could the problem be in the way  
the loops are encoded?

I have tried the application on several PCs, but the only one it  
displays correctly is the PC I wrote it on, which is a 3.4 GHz  
Pentium...

Alan Simon
Garden State Cardiology