any idea why I'm getting this linker error (and one more like this)
when trying to build the solution(sorry about the length):

File: msvcprtd.lib
"Error 1error LNK2005: "class std::basic_ostream<char,struct
std::char_traits<char> > & __cdecl std::operator<<<char,struct
std::char_traits<char>,class std::allocator<char> >(class
std::basic_ostream<char,struct std::char_traits<char> > &,class
std::basic_string<char,struct std::char_traits<char>,class
std::allocator<char> > const &)"
(??$?6DU?$char_traits@D@std@@V?$allocator@D@1@@std@@YAAAV?$basic_ostream
@DU?$char_traits@D@std@@@0@AAV10@ABV?$basic_string@DU?$char_traits@D@std
@@V?$allocator@D@2@@0@@Z) already defined in
dancemath_d.lib(matrix3x3.obj)"

I'm guessing that this is a multiple inheritance issue.
I did try every step posted previously by Ari on VS 2005 compiling
and they fixed my errors but I'm stuck with this one.

-hamed