When you click on a drop down list box and try and use the scroll bars (or their arrows), the box does NOT scroll. It can be scrolled 'manually' by moving the highlight bar up and down using the keyboard arrows. This problem is also present on list boxes. URL includes a sample, for anyone who can't think of one off the top of their head.
This is fixed in the 0.9.4 update which was released later today. Sorry about that.
verified - wfm in build ID : 2001-09-19-05-0.9.4 win2000