f-spot crashing ...GL at fault?

[C Hamel]

The following is what I get when I try to load f-spot.  The interface appears 
and a fatal error immediately occurs:

An unhandled exception was thrown: GL

  at (wrapper managed-to-native) GdkGlx.Context:glXChooseVisual 
(intptr,int,int[])
  at GdkGlx.Context..ctor (Gdk.Screen screen, GdkGlx.Context share_list, 
System.Int32[] attr) [0x00000] 
  at GdkGlx.Context..ctor (Gdk.Screen screen, System.Int32[] attr) [0x00000] 
  at FSpot.PhotoImageView.HandleRealized (System.Object sender, 
System.EventArgs args) [0x00000] 
  at FSpot.PhotoImageView..ctor (IBrowsableCollection query) [0x00000] 
  at FSpot.PhotoView..ctor (IBrowsableCollection query) [0x00000] 
  at MainWindow..ctor (.Db db) [0x00000] 
  at FSpot.Core.get_MainWindow () [0x00000] 
  at FSpot.Core.Organize () [0x00000] 
  at FSpot.Driver.Main (System.String[] args) [0x00000] 
.NET Version: 2.0.50727.42

Assembly Version Information:

google-sharp (0.1.0.0)
FlickrNet (2.1.2.3191)
SmugMugNet (0.0.0.0)
pango-sharp (2.10.0.0)
SemWeb (0.7.1.0)
glade-sharp (2.10.0.0)
gtkhtml-sharp (2.16.0.0)
gconf-sharp (2.16.0.0)
System.Data (2.0.0.0)
Mono.Data.SqliteClient (2.0.0.0)
gdk-sharp (2.10.0.0)
gnome-vfs-sharp (2.16.0.0)
NDesk.DBus (0.0.0.0)
System (2.0.0.0)
Mono.Posix (2.0.0.0)
NDesk.DBus.GLib (0.0.0.0)
atk-sharp (2.10.0.0)
gtk-sharp (2.10.0.0)
glib-sharp (2.10.0.0)
gnome-sharp (2.16.0.0)
f-spot (0.3.2.0)
Mono.GetOptions (2.0.0.0)
mscorlib (2.0.0.0)

Platform Information: Linux 2.6.20-5-generic i686 unknown GNU/Linux

Distribution Information:

[/etc/debian_version]
4.0

[/etc/lsb-release]
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=7.04
DISTRIB_CODENAME=feisty
DISTRIB_DESCRIPTION="Ubuntu feisty (development branch)"

Frankly, I don't know how to deal with this... having no experience w/GL.