SAP Theming version difference between QA & Prod

Hi Experts

We are using SAP Portal system to connect to SAP CRM system. Everything works fine in our QA  system. In Production, CRM screen window is almost 1/3. We tried to compare components & versions for our custom themes. Everything looks good except theming enging. Production shows 1.8.1 and QA shows 1.9

I don't know how to check theming engine version and how to fix it.

Any suggestion or information.

Thanks in advance.

Regards

Jitendra Pongurlekar