[wxWin 2.8.7] Build error

[Bob McCown]

Howdy all
  I just downloaded a fresh wxWin 2.8.7, ran the installer, and now I'm trying 
to build the libraries.  I get the following errors in some of the libraries 
when I build:

app.obj : error LNK2019: unresolved external symbol "protected: virtual class 
wxString __thiscall wxAppTraitsBase::GetAssertStackTrace(void)" 
(?GetAssertStackTrace at wxAppTraitsBase@@MAE?AVwxString@@XZ) referenced in 
function "public: virtual bool __thiscall wxApp::Yield(bool)" 
(?Yield at wxApp@@UAE_N_N at Z)
appcmn.obj : error LNK2001: unresolved external symbol "protected: virtual 
class wxString __thiscall wxAppTraitsBase::GetAssertStackTrace(void)" 
(?GetAssertStackTrace at wxAppTraitsBase@@MAE?AVwxString@@XZ)
msgout.obj : error LNK2001: unresolved external symbol "protected: virtual 
class wxString __thiscall wxAppTraitsBase::GetAssertStackTrace(void)" 
(?GetAssertStackTrace at wxAppTraitsBase@@MAE?AVwxString@@XZ)
rendcmn.obj : error LNK2001: unresolved external symbol "protected: virtual 
class wxString __thiscall wxAppTraitsBase::GetAssertStackTrace(void)" 
(?GetAssertStackTrace at wxAppTraitsBase@@MAE?AVwxString@@XZ)
utilscmn.obj : error LNK2001: unresolved external symbol "protected: virtual 
class wxString __thiscall wxAppTraitsBase::GetAssertStackTrace(void)" 
(?GetAssertStackTrace at wxAppTraitsBase@@MAE?AVwxString@@XZ)

This is on XP, VS2005.  I haven't made any changes at all to the 
wxWidgets-2.8.7 directory, or any of its files.  I'm building both the wx.dsp 
and wx_dll.dsp, they both give me the same errors.

Help?

Thanks
-=Bob McCown