Merrill,
I’m sorry you’ve got this issue. I have replicated the problem and raised a bug report for the development team to work on.
I’m not sure what you meant by, “it seems to run off the top of the page”. Certainly, the combo box is misaligned, if that’s what you mean, but there is no response at all from a click. Note that the combo box is active on a Cocoa install (I assume you selected the Carbon option at installation), though it is badly aligned there also.
Unfortunately, there is no workaround for this issue on Carbon, unless you can use the Criteria Editor, making use of the setMaxResults method. Alternatively, you could install one of the the Cocoa options, though you’d lose some functionality (note that you can have both Carbon and Cocoa installs).
Apologies for the inconvenience.