Pop-up dialog obscured by Drupal shortcut bar

I found this problem in CiviCampaign, but it likely exists anywhere you have an option list long enough to fill the screen.

When I select "New Survey", next to the "Activity Type" field is the new button to pop up editing of activity types (is there a name for this?).

When I press the button, the pop-up that appears is longer than my screen, so it expands to just under the menu bar - but ignores the Drupal shortcut bar, which I assume is in core (this is my dev site, where CiviCRM and Devel are my only contrib modules). This makes it impossible to close the pop-up (see screenshot).

I realize it may be impossible to fix all possible variations of this problem, but if there's a way to ensure that the pop-up is sized such that the "close" button is always visible, that'd be a great usability improvement.