I'm having a strange issue, I have made no changes to my system lately but it seems like MSN messenger, AIM and Internet explorer are being blocked by something, Firefox however works fine, as well as other online rpgs I play. The messenger diagnosis is that key ports are being blocked. I have disabled UAC and temporarily disabled Kaspersky as well as making sure windows firewall is off but I cannot use any of these programs. I do connect through a router but no other PC's or laptops going through this have the same issue, and it is set as the default settings. Any ideas what this may be? Thanks.