[Gtk-sharp-list] TreeView content positioning

[Draek]

I have designed a TreeView custom widget that includes an expander
column, and a column with custom data.

For some reason, the column with the custom data is automatically pushed
over to the right about half an inch, and i can't seem to change that.

If you use GAIM, you know what I'm talking about. The contacts in
the contact list are about half an inch to the right.

Is there a way to change this margin? Or is it basically hard coded into
GTK?

Example:

> Root
------> Child Item
------> Child Item
> Root2
------> Child Item

the ------> i want to be more like:

> Root
--> Child Item
--> Child Item
> Root2
--> Child Item

I've tried to change the expander column width, doesn't work.

Any help here would be greatly appreciated.

Draek
Galaxium Messenger