Win app failure: Python/wxWindow font issue

wine 1.2.3-1 - installed from binary via EPEL - Extra Packages for
Enterprise Linux (http://fedoraproject.org/wiki/EPEL)

I'm able to install a Python-based Windows application (a GUI management
utility for a firewall product), and I am able to launch the utility...
but when I attempt to do some functions within the application, it blows
chunks (in a popup "Diagnostic Window") with the following error:

  wx._core.PyAssertionError: C++ assertion "!theFont || theFont->Ok()"
failed at ..\..\src\msw\window.cpp(2119) in wxWindow::GetTextExtent():
invalid font in GetTextExtent()

I'm guessing that something else needs to be installed - does anyone have
an idea what?

Also: I'm completely new to Wine... is there a method to run in a debug
mode to see what files it is attempting/failing to open?

Thanks!

Lee Roth