Crystal Reports 2008 install on Windows Server 2008

I am trying to do a typical install of Crystal Reports 2008 on Windows Server 2003 and I keep getting an error that says "ReportConvTool.dll failed to register" and then the same error for other dll's, Myinfoview.dll, Encyclopedia.dll, etc.. What can be the problem?

I installed on a Vista machine with no problems.

Any and all help is greatly appreciated.

Thanks,

Ken