Autofill Causes webpage to freeze

Norton 360 V 6.2.1.5

Windows 7 64bit

IE 9

when logged into Identity Safe, Norton autofill causes many web pages to freeze.

A pop-up asks if I want norton to recover page

Even happened when registering for this forum !

Logging out of identity protection stops problem

 

Any ideas how to fix please, driving me crazy..

 

Thanks