Is it possible, via GPO or other method, to turn Internet Explorer’s intranet compatibility mode OFF across a domain

Our school's VLE has a few problems when running in IE8/IE9's Compatibility View. Mainly it causes difficulties with uploading files.

This problem is easily remedied by un-ticking the Display intranet sites in Compatibility View option from Internet Explorer's Compatibility View options.

However, I'm unable to find a way of doing this en masse. I can't find anything regarding this in GPO – would a registry hack or similar do the trick?

Thanks in advance,