Maximum number of objects limit?

Hi,

Is there some object limit on Flash cs3?

If I add certain amount (hundreds) of objects on screen, I cannot add icons to my combobox dropdown anymore… (No error is displayed, the icons just dont appear there)
Then If I put less items on screen/scene, the icons work…

*Edit: solved, it wasnt from amount of objects, but from the delay reading & creating so many objects from text file…