gnome crashes on OWindow->Draw, oView

I'm trying an example in the help system on "Creating an Object
Graphics Display".  The last line of the following code causes my gnome
window manager to crash:

; Create a destination object, in this case a window:
oWindow = OBJ_NEW('IDLgrWindow')
; Create a view****t that fills the entire window:
oView = OBJ_NEW('IDLgrView')
; Draw the view within the window:
OWindow->Draw, oView

Other perhaps useful info:
Computer = Dell Inspiron 9100 notebook with ATI graphics.
OS = Ubuntu Dapper Drake
IDL = 6.3 (idlde)