I have Comcast high-speed internet with one computer hard wired to the box running Windows 7. Also, a laptop is connected via wi-fi running Windows XP Pro.

BOTH computers experience random pauses for 3-5 seconds, sometimes frequently. If you try to click in the current application window, that window fades almost completely to white until the pause is over.

Since both machines have the same problem, the culprit has to be Comcast. Anyone have a solution?