= [wiki:Goanna] Issues =

== Goanna hangs with recent NVidia drivers ==

There seems to be a bug in the recent NVidia graphics drivers for Linux (specifically version 100.14.11).  This causes Goanna (and sometimes X) to go into a high-CPU loop and cease responding for extended periods, sometimes indefinitely.  Older (1.0.x series) drivers seem to work just fine.

== GL view doesn't redraw on Mac ==

There seems to be a bug somewhere in the accumulation buffer support when running on Mac.  To get around this, choose "None" or "Multisampling" for the antialias mode in the 3D settings in Preferences.

== Topography object selection doesn't work ==

The X11 !r300 drivers for certain ATI Radeon cards do not have a working implementation of OpenGL feedback and selection.  Therefore, to be able to interact with the topograpy view on one of these cards, direct rendering must be disabled.  See http://gtkglext.sourceforge.net/reference/gtkglext/gtkglext-running.html for details on how to force [wiki:Goanna] to use indirect rendering.