Galeon right-click dies after upgrade

SuSE 9.0 Galeon 1.3.14 After an apt-get upgrade yesterday, right-clicking a link no longer displays a context menu. Right-click still works OK on the address line (ie, clear, cut, copy, paste, delete, select all, etc). I have changed the right mouse preferences back and forth between Context and Gestures without any effect. Middle-click does manual scrolling and does not open a link in a new tab. Right-click still works OK in FireFox and Ximian Evolution. Where should I look next to determine what changed?