I have a Linksys BEFSR41 router. Currently I have absolutely NO ports being forwarded to my PC. However, when I go to GRC's website and run shield's up, it tells me that ports 21, 25, 110 are all open. I have also used various other port scanning programs from both inside and outside the network and I get the same results. The XP firewall is enabled on the PC. This is a fresh clean install with absolutely nothing running in the background. Any suggestions???