Reverse (drug) search list - no scroll bar

When looking for interacting drugs in the map (click on the pin, 'Show all' interacting drugs), the popup window does not have a scroll bar. For me, a window with all contents is shown, for Stephan only a part of it was displayed. I assume the same happens for chemicals and miRNAs.

A good test case is DRD1 in the PD map.