crwdns2934241:0crwdne2934241:0 Sergio martinez

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Calculator makes extra lines and dots

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My calculator it does work but when i click to catalog, modem or too many numbers the claculator makes extra lines and dots and it makes it hard to see the letters and numbers that it displays...i think it has to be with the computer part of it

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Texas Instruments TI-83 Plus

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open