It seems I can only get Media Player 12 to work as administrator. If I run it normally (I am in the administrator group on my local PC) and right click on Music, and choose Manage Music Library. Media Player will sit and think for 5 or so seconds, then just not do anying, no dialog, no error.
If I run as administator I can now get into the Manage Music Library dialog and add my a public folder containing my music. I've even tried granting everyone access to the public folder.
One thing to note is that I have recently set up a domain controller and added my PC to the domain. With my local account I never noticed this problem, but I've since created a domain account and am now seeing this issue. I can't find much difference between the local and domain accounts - both are in the administrator group. Why would WMP require run as administrator?
OS, Windows 7 64bit