If this is the first that I've run across this problem, how big of a deal is it that I try to fix it? (Especially since I've got Comcast, and from article that Peter linked to, it looks like this is a typical problem for them).

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Jessica H.
Church: www.eopckent.org (OPC)
Work: www.uwmedicine.org/Facilities/Harborview/

Oh make this heart rejoice or ache; / Decide this doubt for me; / And if it be not broken, break -- / And heal it, if it be. ~William Cowper