Hi,
Please note that SAP GUI 7.20 is out of maintainence as of 9th of April 2013 as per the following
SAP note:
147519 - Maintenance strategy / deadlines for SAP GUI
So, please apply SAP GUI for Windows 7.30 with Latest Patch Level and
BI 7.0 ADDON FOR SAP GUI 7.30 with latest Patch Level and check whether it helps you.
Thanks & Regards,
Sapna