Unsatisfied Link Error when compiling with g++ 3.2.3

[Leonard Wesley]

After compiling the following code fragment into a .so file
using GNU g++ 3.2.3  I get an "unresolved reference" error
message when that .so file is loaded. I do not get this error
with earlier versions (e.g., 2.9.x) of the GNU g++  compiler.

Assume Name, DiscreteProposition, ContinuousProposition, 
constructors, destructors, comparitors, n, and ctp have been 
properly defined and initialized.

template<class FrameType = DiscreteProposition>
class Frame
{       
public:
        // Constructors
        Frame();
         Frame(const Name &);
         Frame(const Name &, const FrameType &); 
        // Destructor
        ~Frame();
        // comparitors
        bool operator==(Frame &);
        bool operator!=(Frame &);
        // copy
        Frame & operator=(const Frame &);
        :
        :
}
        :
map<Name, Frame<ContinuousProposition>, less<Name> > ContinuousFrameMapping;
        :
ContinuousProposition ctp;
Name n;
        :
Frame<ContinuousProposition> Fx (n, ctp);
        :
Name tag = "abc";
ContinuousFrameMapping[tag] = Fx;

The above code is compiled into a  <file
name>.so   file that is part of C++
and JNI code to interface Java with native C++ code. 
While Java is loading the  <file name>.so  file at
runtime, the following error message 
is displayed.

Exception in thread "main"
java.lang.UnsatisfiedLinkError:  <file name>.so 
<file name>.so:  undefined symbol: 
_ZN5FrameI21ContinuousPropositionEaSERKS1_ 
.......


The unresolved link error error seems to be related to a
constructor/destructor that
is needed as a result of the 
ContinuousFrameMapping[tag] = Fx; 
 statement.
However, I cannot figure out what needs to be defined to fix this error.
Any suggestions? 

Thanks,
--Len