Folder list not loading in IE 10 after upgrade to 7.2.5

[willag1]

Hopefully this will help someone else.
After upgrading from 7.1.3 to 7.2.5 FOSS on Ubuntu 10.0.4, the account folder list would not load in the advanced web interface.
The compressed JavaScript file /zimbra/js/Startup2_all.js.zgz?v=130911103231 was only partially loading in IE 10. The JavaScript file loaded correctly on IE 8, IE 11, and Firefox.
I unzipped and rezipped the /zimbra/js/Startup2_all.js . The file loads correctly now in IE 10.

cd /opt/zimbra/jetty/webapps/zimbra/js

gunzip -S .zgz Startup2_all.js.zgz

gzip -S .zgz Startup2_all.js