Haven't used the 170 before, I've got an HVR-Z1U I know you've probably checked but did one of the switches get turned off
? Or in the menus there is a option to turn each one off or combine them and also do some other stuff, you may want to check there. Sony has a pretty good website, if you search enough they may have an answer for you. Good Luck!!!
If the basic criteria for a vampire is a living entity that sucks the life out of you in order to sustain itself, then I know a few. They tend to hide out in Washington, DC.
Don't miss the new epidsodes of ARCHERS CHOICE. Mondays at 10:00am, Tuesday at 6:00 am and Sundays at 12:00 est!!