Crystal Reports error on deployment server

Message

   I am getting the follwing error on my deployment server, but the report works fine on the development server:

[SecurityException: Requested registry access is not allowed.]
   System.ThrowHelper.ThrowSecurityException(ExceptionResource resource) +51
   Microsoft.Win32.RegistryKey.OpenSubKey(String name, Boolean writable) +7462217
   Microsoft.Win32.RegistryKey.OpenSubKey(String name) +6
   CrystalDecisions.CrystalReports.Engine.ReportDocument.CheckForCrystalReportsRuntime() +124
   CrystalDecisions.CrystalReports.Engine.ReportDocument..cctor() +197

Can anyone help me debug this please?  I have already spent 8 hours trying to figure it out.