Dark screen I changed the batteries on my ti-85 and the screen was too dark. I lost the manual a long time manual.

My TI-85 used up regular AAA batteries too fast, so I switched to Lithium AAA batteries. With these batteries the screen was too dark to see numbers. In searching for a solution to the problem, I came across your website. I tried "2nd, let go, down arrow" several times. This fixed the problem. My calculator is about 14 years old! I love it, cannot be without it. My TI-85 used up regular AAA batteries too fast, so I switched to Lithium AAA batteries. With these batteries the screen was too dark to see numbers. In searching for a solution to the problem, I came across your website. I tried "2nd, let go, down arrow" several times. This fixed the problem. My calculator is about 14 years old! I love it, cannot be without it.