Crystal Dll vs GAC ambiguity problems

[Greg]

I have a web project that references the Crystal 10 dlls which are in
the GAC, and in that same solution I have libraries that also reference
them the same way. However when compiling I get ambiguity errors since
the library reference resolve to the Common Files path to the dll
directly as .Net references where the web project sees them as GAC
references.

I setup the reference the same way for both the web project and
libraries but one resolves GAC and the other .Net which I believe is
the problem.

Any idea how to resolve this issue?