While the fullscreen editor compensates for the bar and it does not obscure the tag picker there is a problem with the table properties box.
The box resizes to a dimension that does not compensate for this added bar and therefore the OK and Cancel buttons are obscured. The other dialog boxes seem to handle this by being oversized.
Upon close observation it appears that when the popup is first accessed the window size is defined larger than the final size. The form elements appear first. There is a slight pause and then the buttons get drawn. Immediately after that the window resizes to a the smaller size that obscures the buttons.
There is also no way to resize the window, or any default action when pressing the enter key. Therefore there is no way to actually change any of the properties without hand coding.
This does not occur in Mozilla 1.0 or other versions of IE.