[wxPython] Trouble Installing wxWindows/wxPython

I have just downloaded wxWinodws and wxPython, I built and installed the packages under linux following the install instructions however when I try to run the demo I get the following errors.

Traceback (innermost last):
File “./demo.py”, line 3, in ?
import Main
File “/usr/lib/python1.5/site-packages/wxPython/demo/Main.py”, line 15,
in ?
from wxPython.wx import *
File “/usr/lib/python1.5/site-packages/wxPython/init.py”, line 20,
in ?
import wxc
ImportError: undefined symbol: __vt_19wxNumberEntryDialog

I tried locating the missing files but they weren’t on the system am i missing a step in the build?

Any help is very much appreciated.