This did not happen in CS3.
Also, another problem is the little pop-up window that appears as you type in the editor window, it only tells you what you already know and have typed, it does not help you with valid options for what to type next.
For example if you type "app", it shows [app: the application object]. I already know that! thats why I knew to type "app". Much more useful would be if it suggested what I might want to type next, for example
app.reflect ... etc,
those are the possible valid completions if I have already typed "app", I could just choose from that list, instead of having to pop over to the Data Browser (which jumps around annoyingly) to see what to type next.
Many thanks for an otherwise excellent programming environment!