Software installation
Software installation... while the ideal is that the users cannot have admin rights to install their own software, this is often impossible due to fucktard developers who manage to write (aka blindly cobble together) applications that "require" administration rights just to run.
On this front, I can feel for the admins at Orange - the useless so-called web apps aren't, they're IE6 botched apps instead. As a result, they have to keep using IE6 as IE7 (and IE8) are so bloated that the hardware, that should be quite adequate for the job, cannot sensibly cope. They can't use any other browsers either, as these don't work with the IE6-app's that are in use.
Next, they can't even lock down the systems because some crud applications won't work if they can't write to wherever they damn well please in the file system / registry (registry use = fail, every time - dumbest idea for a long time from MS).
As a result, users start installing crud on the systems they use (company property, not personal) - custom browsers, plug-ins, junk-mail apps, trojans, viruses, etc. This can take a long time to fix - often through the hassle of having to re-image systems and re-configure them - imaging is all very well but if the hardware pool varies, can be a lot of hassle.
Threatening the users with a, possibly illegal, £250 fine isn't an especially smart move though.