TGComboBox selection makes window lose focus

Hope this isn’t a repeat question (did a few searches on it).

When a selection is made in a TGComboBox via the mouse, the main canvas window losses focus. This is verified using the guitest.C in the tutorials/gui for ROOT 5.26.

Maybe related to the windowmanager? I’m running with XFCE4… on Fedora 14 and Centos 5.7.

Under different windowmanagers (mwm, gnome) the focus flickers… off on button hit, back on when released on mouse button.

Maybe its a problem with the window manager for xfce4.