Error Applying Tor Settings after Window Updates

Hi all,
I have used Tor (latest version) without problems, but after the Windows Update batch of updates of 4/27 I get a very annoying error message: unable to apply settings, failed to bind one of the listener posts.
I've been through the settings, restarted my computer, installed the new alpha version, restarted the computer, then uninstalled, restarted, and reinstalled the stable version. Still same problem. So I'm guessing this has to do with the Win updates; here's a list of what was installed: KB2515325, KB2522422, KB2492386, KB982018, and KB2506928.
Here is a picture to better describe my problem…

Error Applying settings
Vidalia was unable to apply your Server settings to Tor.
Unable to set option: Failed to bind one of the listener ports.
Show Settings Cancel
Solution please…
Thanks in advance.
