object doesn't support property or method '$2b'

We encountered this strange error in a CRM online environment. The symptoms were as follows:

1. Only occurred on the Outlook client (not in IE)
2. Occurred even when form jscript was disabled indicating issue was not with the script
3. Appeared when closing out the contact form

The error message looked as follows:

After a bit of scratching around the solution presented in the following forum discussion seemed to work. Or in short as follows:

1. Close Outlook and IE
2. Open IE and delete temporary files (Make sure to uncheck “preserve favorites website data”)
3. Now if you open outlook, you might see that On the Grid's Ribbon is loading... WAIT for it to load
4. Open the Account, Lead, Appointment