Mysterious publishing problem

I’m making a large flash project using AS3 where the user takes a test of 170 questions. It chooses a random 10 sections out of 50, for which each section has 17 questions. I have a file that previously worked for just 15 sections that weren’t random and started from there. The new file has 50 sections in one MovieClip and it hops to the frame of the randomly selected sections. Each section is a MovieClip of 17 frames of questions. After I added the 50 sections in the movie stopped working entirely. It is as if none of the code even exists. Simple buttons no longer work, stop(); commands are ignored, nothing works. All the movie clips just cycle through their content repeatedly. I don’t get any error messages when it’s compiled, so I don’t know where to start. To further confuse me, it works on someone else’s computer who uses CS4 even though it wasn’t created using CS4. Everyone else has CS3 and it doesn’t work for them either. Removing about half of the sections fixes the problem, but we need all 50. It may in fact need to expand to 65. We’ve scoured the code for hours and can’t find anything wrong. Yes, there are stops on all the frames.

Is there some known issue that CS4 can handle that CS3 does not? Does Flash have a limit to how much it can handle in CS3? Any other insights please? Thanks!:dilbert: