Is anyone else having this problem? 1, when I tune to any of my HBO channels, the cablecard installer screen pops up. Then when I hit "Clear" to clear the screen, I get a V58 error (channel not available or something like that). Numerous calls to Verizon have turned up nothing. Yes, Verizon has me authorized for those channels. 2, the cablecard installer screen also pops up at random intervals when watching any other channel, or when watching recorded programs. And when I hit "Clear" it returns me to whatever I was watching with no further problems. Have tried two new cablecards, same problem. Cablecard model numbers are current.