FredGarvin: I would be interested in the details of your computer failure as well. I've had mine for a year and a half - I'd estimate 150 dives on it. Earlier this year, it failed on a night dive at Blue Heron Bridge. Gage came up fine, but the first time I hit the button to light up the screen, it "died." Wish I had documented the exact characters that showed up on the top row (everything else was blank), but it was gibberish as far as I could tell. In order to get the computer back live, I had to remove the battery and reinstall. No problems since, but this doese give me pause.