CRM 2011 - Error for script on form in IE10

A coleague of mine had an issue with some scripts on form, fetching related data on selection of a lookup field.

In IE9 it works perfectly. But in IE10 the data are not fetched.
Now one solution is to add the url for CRM instance to lists of url's to be opened in compability view. The infrastrukcture are not in place for a GPO. Another solution was required.

Solution was straight forward:
In system settings, customizations the falg for "Open in most recent version of Internet Explorer" must be cleared.