An update: A few weeks ago Time Warner had to send a tech to my house with a new cable box because I was having frequent signal stalling across all channels. He set it up and ran diagnostics on my line and left, saying all seemed up to spec. Within a day, the problem resumed. So I called them again today.

While I was on the phone, I was also attempting a TurboTax update which kept failing.

So with the CSR still on the line, I power cycled the modem again, and waddaya know, update successful. It's pretty obvious now that I've got a line problem, because the stalling TV picture, and corrupted dmgs and failed updates started happening at about the same time.

'Nuther visit scheduled for tomorrow or Wednesday. Will be interesting to see if TWC comes up with a fix instead of an excuse this time. smirk