Last week while diving in the Keys, we had an issue (actually a problem) with my husbands computer. While on a dive in Key Largo, around 90 feet, my husband (who was doing his AOW class) thumbed a dive after 20 minutes. When we reached the surface, after a good safety stop, he showed me his gauges and the display had him in DECO violation mode and locked out. I couldn't make any sense of this, as I was on the VT Pro and an almost identical gas mix and never remember getting less than 18 minutes of BTR. Today I pulled out the computer to look at the dive log info, and when turned on, it flashed ALT several times then shut down. I called Oceanic to talk to Tech Support and they indicated that the calibration was off, that the computer was reading that it's current altitude as greater than 14,000 ft (I'm in South Florida...I found that quite amusing ) I'm sending it in for service, but just wondered if anyone else had experienced anything similar with Oceanic or any of the Pelagic computers? Thanks for any feedback.