Lon, I can pretty much guarantee (and I think Don would concur) that if you switch your nameserver over to Open DNS, things will be better. I've still been locked out a time or two since switching just after the new NGDF appeared, but nowhere near as often as when I pointed to my ISP's nameservers. The Open DNS website
www.opendns.com has pretty good step by step instructions if you're a bit nervous about what to do, though some familiarity with computers/networking beyond the typical user level does help.
Scott