On click, button gets focus but no event fired?

[brucedickey at micron.com]

Python 2.3.4, wxPython 2.4.2.4, Red Hat Enterprise 3

I have an app with main gui thread and a few worker threads. I'm doing
gui processing in the gui OnIdle handler. I have two buttons, "Run" and
"Abort"
that are Enabled() in differente states. Both have this issue
sporadically: when enabled and upon left mouse click, the button get
focus (dark line around it), but does not generate an EVT_BUTTON event
(even after multiple clicks). Clicking outside the button and then on it
again generates the event as expected. During this time the gui is
responsive and many sorts of updates are working properly.

Anybody seen anything like this? Suggestions?

Thanks,
Bruce