Summary: The right half of the screen looks faintly white at all times. It looks terribly white when displaying a supposed-to-be-black background. The sound isn't great. I don't know the chances that you'll get a defective unit also, but I do know this one arrived messed up! I bought it new, directly from Amazon.
Summary: I bought this to use on a PowerMac G3 because the manual implied it would work without an adapter; maybe on some G3's, but not on mine. I tried it on a PowerMac G4, OSX 10.4.11. It works at first, but after a while it shifts the left half of the screen to the right side of the display and the right half to the left side, with the right side being unreadable. I called Viewsonic to see if there was a solution.