[C++-sig] Problem with vc++ 7

[Paul F. Kunz]

   Environment: boost 1.28.0, VC++ 7.0, Windows 2000 and XP.   

   My Python extension module fails to intialize.   From the function
generated by the macro

   BOOST_PYTHON_MODULE_INIT(hippo)

the assertion in BOOST_FUNCTION_FUNCTION::operator() 

    assert(!this->empty());

fails.  With same source code, I do not have the problem with gcc
2.95.3 with boost 1.25.0  or gcc 3.2 with boost 1.28.0  under RedHat
Linux.   Also didn't have the problem with VC++ 6.0 sp 5.

   Any clues?   Known problem?