Definitions List

[VirtualEOrtega]

Hi, I'm working on a definition list/frequently asked question list. The problem I'm having is the mouseover does not appear as it reaches the bottom of the list on the browser. Can some one help and guide me in what I'm doing wrong?
I have a total of 30 questions. The popup starts disappearing around the 20th question.

[Twey]

PLEASE: Include the URL to your problematic webpage that you want help with.