[gtkmm] Toolbar text labels problem

[Adam Olsen <adamolsen net-bizz com>]

Hello,

I'm having a little trouble with the text labels on toolbar buttons. 
I'm using this code:

http://www.rafb.net/efnet_cpp/paste/results/w1476214.html

I don't want the Text Labels to show up for the buttons.  This is how it 
looks on my Debian system (and this is how I want it to look):

http://linuxhelp.homeunix.com/nolabels.jpg

and this is how it looks on my Arch Linux system and also how it looks 
when compiled in Windows:

http://linuxhelp.homeunix.com/textlabels.jpg

How do I make it so the text labels don't show up?

Thanks,

Adam Olsen