Shoutbox

I just looked and assuming from one of your posts, you may have recently installed Windows XP SP2, this post is entirely based on that assumption and just ignore it if you haven't installed XP SP2.
This contains a firewall, that let's be honest is very new, and out of preference for McAfee I kept that, however you may find that you have disabled access to WhatPulse with Windows Firewall. Make sure that either Windows FW allows WhatPulse to function and has accepted it as a program...or if you prefer just disable it, check the box for you already want to manage your Firewall situation on your own and make sure you have a firewall that is suitable to take over...