Pointer focus when hovering over drop-down list is on layout or record behind it
Operating system version
Mac OS x 10.6.8
Description of the issue
After bringing up a drop-down list, if the the list extends over records in the body (list view) and you point at a list item in the drop-down window, the item itself doesn't highlight and the pointer focus appears to be on the items behind it: e.g. a field in the body with an on-hover highlight state will highlight. See attached screen shot (you can't see the mouse pointer, unfortunately, but it is pointing at the drop-down list items).
Steps to reproduce the problem
Switched the list to Pop-up: worked fine (list items in the pop-up showed highlighting, items behind it didn't). Switched back to drop-down, problem returned (list items did NOT highlight, but items behind it did).
Highlighting would affect items in the drop-down list and the UI would not keep focus on the layout objects behind the list.