dialog title bug -- mac os 10.4.7

[7stud]

Hi,

Instead of appearing in the title bar, the title appears as 
bolded text in the body of the dialog. 

Example code:

---
import wx

app = wx.PySimpleApp()

dlg = wx.MessageDialog(None, "the body message", "The Title")
result = dlg.ShowModal()
dlg.Destroy()
---


intel mac, os 10.4.7