Have I mentioned about how much Comcast's DNS servers suck? Absolutely pitiful.
I've since configured my router to use OpenDNS instead of relying on Comcast's fucked up DNS servers. I highly suggest that Comcast stop advertising their high speed internet service on the television every god forsaken time commercials air and instead focus on getting their existing infrastructure up to speed (no pun intended) before bringing new customers on board.
I am sure Halliburton is behind this, and the oil companies, too!
No good, greedy bastards.