I have so far failed to get any good looking AS3 autocomplete. What do I need to do to work out what's going wrong? I am getting this when I press Alt-Esc:
please select a class to locate the package for
The auto completion you're trying to invoke is scope sensitive and will only work within a public class. Judging from the message you're seeing I'd say you were within a package statement, ie the bundles expecting you to be completing an import declaration.
Cheers, Simon