Comcast + Yahoo content issue

(sorry for the interruption)

Before I go and spend hours on the phone with mind-numbing low-level "support" kids.... Does anyone know about any content caching issues between Yahoo and Comcast? For the past few days I have noticed that news content on is 2 weeks old when viewed from Comcast's broadband network (2 different locations in Atlanta). This is not true when viewed from the same laptop via dialup or GPRS. I know that my chances are less than 5% in trying to explain this to a customer support person, so I am hoping to glean some advice here on what to do about this. Thanks,

-Jim P.