Just to follow up, I'm not sure that anybody is still having this issue
anymore, but I've seen on several sites that the AIM 6.5 patch is indeed
the cause of this problem. The suggested course of action is to
roll-back to before you installed the update, and then if you need to
have AIM, the 5.9 version is available on the site as well ('Instant
Messenger - AIM - Instant Message Your Online Buddies for Free - AIM'
)), install and use this until the issue can be
Note: This issue has also been blamed for other problems in addition to
the Networ and Sharing Center, such as files not being found in Winamp,
nor audio when attempting to play files in VLC...