How does the code completion feature in Borland C++ BuilderX (Enterprise 1.0 or Mobile 1.5) work?

I tried CTRL+SPACE. It did not work. I am using the Trial version, is that the reason it is not working?

BTW, could anyone, whose code completion is working, post a screenshot of these screens:
Tools > IDE Options
Tools > Editor Options

Thanks a lot in advance.

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The Gripmaster