Spruance,
Please go ahead!
There is another fix if you'll bear with me:
Start Messenger.
On the TOOLS menu, click OPTIONS.
Under CONNECTION, click ADVANCED SETTINGS.
Delete the entries under SOCKS.
Click OK, and then click OK again.
If you're running XP:
On the taskbar, click START, and then click RUN
Type cmd, and then click OK.
At the command prompt, type ipconfig/flushdns, and then press ENTER.
Good Luck!