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Agreed. I had a VT4.1, and the backlights were never very good. I noticed that they had stopped working while on a “night” dive* for a certification. I used my light for that dive. No issues at all during day dives. With a new diver in the family, I needed a new one, so opted for a full color screen this time.I think you will have to learn to live with the dim backlight or look for a computer with a brighter screen.