Setting Internet Explorer temporary internet files path via Group Policy

I am trying to force a domain wide policy that sets the default path for temporary internet files to "C:\temp\temporary internet files". When the Domain was originally created this was the default policy, and the GPO "disable changing temporary internet files" attribute is set to enabled.
Unfortunately since upgrading the server hardware this policy has become corrupted, it is set correctly on some workstations but others have reverted to "C:\Documents and Settings\%UserName%\local setttings\temporary internet files". I can find the "disable changing temporary internet files" attribute in policy editor but not the path setting.
I know I can disable "disable changing temporary internet files" attribute in policy editor and then change the settings on each workstation manually but it would obviously be much more efficent to do this from the server.
Any advice would be greatly appreciated.
Regards
Garry