Have you tried re-adding links to the Crystal DLL in your project? Crystal 11 is not directly compatible with VS2008, so you may need to find the DLLs manually (try c: \ windows \ assembly \ GAC and c: \ windows \ assembly \ GAC_MSIL). After updating your project to use DLL 11. *, this should work on the client machine.
FWIW - Crystal 10.5 DLLs that you reference in your project are most likely libraries for Crystal Basic 2008 (the version that ships with .NET).
Another possibility is to guarantee the client that DLLs should include Crystal XIR2 merge modules.
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