Has anyone had this problem, and if so, do you know what causes it?:

Occasionally when editing code, the autolist members don't show up when you expect them to - for example, when typing a dot after an object, or the parameters of a sub or function don't display when you are coding a call to it (even though to the best of my knowledge all references are in place and the item is spelled correctly). This seems to be an intermittent problem.

Thanks for any insight you can provide.