Gtk Combobox under Ubuntu

[ahlan@marriott.org]

Hi,

I wonder if anyone has experienced the same problem or can give me a clue as to what I might be doing wrong.

We use Gtk under Windows, Ubuntu and Osx but have problems with combo boxes under Ubuntu.

The programs work fine under windows and Osx and some Ubuntu installations.
However on some machines (but not all) they fail.
If we take out the combo boxes they work.

It is enough simply to simply create the combobox and place it into the main window.
The program crashes when the main window is shown.

If we run the same program from GPS it works again.
If I run the same program on another machine it works.

This, to my mind, suggest that it is a timing issue.
Some machines are faster than others and perhaps running a program from GPS makes it somehow slower.

Because they work when run from GPS, we can't debug them - because they work.

Has anyone any ideas what I could try?

Best wishes,
Ahlan