All, Apparently, the X11 server shipped with Mac OS 10.5 (Leopard) is pretty broken. This has several adverse affects on FOX under Leopard. Fortunately, the Xquartz project is providing more up-to-date builds which seem to work better. Visit this page: http://trac.macosforge.org/projects/xquartz and download their latest pre-built binary for Xquartz (the X server application) and then replace the stock X server with this one: bunzip ~/Downloads/Xquartz-1.3a1.bz2 sudo cp ~/Downloads/Xquartz-1.3a1 /usr/X11/bin/Xquartz I think you''ll find that FOX works much better after this change! Hope this helps, Lyle