Strange issue… Replicated only on one of the User’s machine. So was knowing for sure that this is something to do with the local machine.
on furthur exploring this, found that this happens in IE8 only.
Following steps in IE8 will resolve the issue:
1. In the Internet Explorer browser, please go to Tools > Compatibility view setting > Uncheck all the options.
2. Press F12 and set the Browser Mode value to IE8