GtkEntryCompletion and column wrapping

[<martyn 2 russell bt com>]

Hi,

I have been using the new Gtk 2.4 widgets (specifically the
GtkEntryCompletion)

My problem is that the first and only column used appears to wrap when
the content is little.  In this case, we are putting numbers into the
completion model and when the drop down appears, it looks like:

        +----------------------------+
        | 1                          |
        +----------------------------+
        | 123456789      123456788   |
        | 111111111      111111111   |
        | .                          |
        | .                          |
        +----------------------------+

Sorry if the ASCII art fails miserably to portrait what I mean :/

Is there a column / cell layout attribute required to stop this from
happening?

Any pointers appreciated :)

Regards,
Martyn