this is an annoying problem i get in MSVC++6 (professional)

when in the resource editor, happily making my dialog boxes and i soon come to the need of a dropdown menu. No problem, ive worked with these countless time sin HTML and PHP. But theres a problem..

I cannot populate my drop down box from the resource editor like it says i can.

I click the question mark and it gives me this:
Enter listbox items
Allows you to populate a listbox with data. Type the first item and press CTRL+RETURN to add another item.
like everythings all hunky dorey and i have an option.

everythings greyed out, am i missing a step?
its properly defined in the header file
its a droplist
no owner draw

thats it. Create and fill. Or at least so you think.

Can someone help me here?