[Gtk-sharp-list] Newbie: gtk#-DemoApp would not display correctly

[Paul Weinstabl]

Hi all,

tried out the second gtk#-example from the gtk# tutorial, and it would 
not display correctly with mono or mint. I get the following error 
message (with mint):

(<unknown>:25284): Gtk-WARNING **: Im Modulpfad »galaxy« konnte keine 
Themen-Engine gefunden werden,

(<unknown>:25284): Gtk-WARNING **: Im Modulpfad »galaxy« konnte keine 
Themen-Engine gefunden werden,

Unhandled Exception: System.NullReferenceException: Segmentation fault
#1: 0x0001e calli      in 
GtkSharp.voidObjectSignal::g_signal_connect_data ([136885856/0x828b660] 
[O:0x81e5f60] [O:0x818ad70] [0] [0/0x0] [0] )
#2: 0x0004b call       in GtkSharp.voidObjectSignal::.ctor 
([O:0x8189f30] [136885856/0x828b660] [O:0x81e5f60] [O:0x818ae38] 
[O:0x81e0f10] )
#3: 0x0003d newobj     in Gtk.Button::add_Clicked ([O:0x818ae38] )
#4: 0x0001d callvirt   in .HelloWorld::Main ()

With mono, the error message is kind of similar:
(<unknown>:25279): Gtk-WARNING **: Im Modulpfad »galaxy« konnte keine 
Themen-Engine gefunden werden,

(<unknown>:25279): Gtk-WARNING **: Im Modulpfad »galaxy« konnte keine 
Themen-Engine gefunden werden,

(<unknown>:25279): GLib-GObject-CRITICAL **: file gsignal.c: line 2491 
(g_signal_emit_valist): assertion `signal_id > 0' failed


For those who don't understand german, the message is as translated: No 
theme-engine could be found in the modulepath >>galaxy<<.

Am I missing to set some path to some modules?
Your help is very much appreciated.

Paul Weinstabl