We recently replicated our production environment into another VPC using the server rename procedures.  We also upgraded the CLM applications in the replicated environment to 6.0.5 afterwards.  Since the migration/upgrade, none of our custom RPE Reports are loading the associated style sheets when run from the Reports page in the CCM project.  Console output says the "script.css" and "output.css" stylesheets were not loaded because their MIME type is "text/html" not "text/css".  My understanding is that these stylesheets are generated when the report is run; I haven't been able to locate them on the server to change the content-type tag.  

What setting do I need to change, and where, so that the style sheets are generated as "text/css" and will load when the reports are run?