Last night I had to manually download Service Pack 1 for Windows. It started downloading at about 100KB/s, incredibly slow for me, and rapidly dropped to about 15KB/s. I cancelled it, disabled ZoneAlarm free, and tried again, and got a blazing 2MB/s download speed. So is ZoneAlarm affecting my Internet speed? Also, how can I tell if my router has a firewall? It is just a standard Linksys WRT54G router.