did they add a security warning message maybe?
Apparently not, but good thinking. I am going to reset the GPOs applied to the machine as a next step.
I've already ruled out a custom theme as it happens under the standard Win7 theme too.
This is definitely related to a Windows 7 setting as opposed to EEPC, as the same settings/user works on other WIN 7 machines. I'll post back if I find out what is causing the issue in case it affects anyone else.