Down arrow key not working properply; cursor keeps moving up on its own: sometimes doesn't respond to down arrow key being pressed

Press Fn & F10. This disables the touchpad. You will have to use arrows or a mouse to move the cursor. This helps when you are doing a lot of typing. Press the same keys to enable the touchpad when you are finished typing.

I'll assume your touchpad and built-in mouse are not working, hence your need for the USB mouse. If the touch pad and built-in mouse are working but you find them awkward to use (another reason some users connect USB mice to notebooks), then you might find it easier to briefly persevere and use the touchpad and built-in mouse for only a few seconds just to complete the simple steps outlined below. If not, the keyboard method detailed below is less efficient and more cumbersome but equally effective.
This driver that is being requested is already built-in to Windows. Use the TAB and down or up arrows keys on your keyboard to move the cursor to the button you want to activate -> press the ENTER key to activate the button that the cursor has settled on keys on your Click Next -> No (to alternative search methods) -> search the whole computer for the driver -> next -> finish -> if your USB mouse does not work straight away, press the windows logo key bottom left of your keyboard -> the use the keyboard arrow keys to move once up and then left to the shutdown button -> press ENTER -> use the arrow keys to move the cursor to RESTART -> press ENTER.

I am describing the procedure for the CAS with OS version 2.1 But it should work for your calculator.

1. Turn calculator ON
2. Press The HOME (House icon) button.
3. Press digit key 5 to open Settings and status.
4. In menu options, select [2:Settings]
5. Use the arrow (right) to open the submenu options and select [1:General]
6. The cursor should be on drop down box labeled Display Digits
   
7. Use down arrow to open the number display format, and select Float 6 (an appropriate choice most of the time. If you want more digits, set Float 12)
8. Press [ENTER] or Click to validate your selection.
9. The drop down box will close.
10. Use the TAB button to move to another Configuration setting. Pressing the TAB twice will take you to Exponential format.
11. Use down arrow to unfold the Exponential format menu.
12. If you do not need Scientific Format, use Normal and validate.
13. Press TAB several times until cursor reaches OK.
14. At this point Press ENTER to save Configuration.
15. This should solve the problem.

As I said, this describes the procedure for OS version 2.1. Once you find out how to enter the setting screen, do as I described above, and do not forget to validate by getting the cursor on OK and validate.

Download this driver and it will work

Manual say to -

1. Press the “Menu” key on the panel, “Menu” will appear on the screen.
2. Press [arrow left] or [arrow right] key, move the cursor to “image function”.
3. Press [↑↓] key; enter “Display model” function choice.
4. Press [↑] or [↓] key, move the cursor to “Image Revolve”.
5. Press [arrow left] or [arrow right] key to adjust “Image Revolve”.
6. Press [↑] to go back to the Menu.
7. Press “menu” key to exit the “menu” window

If your projector will not do this, the functionality may not be there.

Either the "left-arrow" or the "backspace" keys on your keyboard is getting stuck in the "down" position.

Take the computer to a qualified technician, and get the keyboard replaced.

Hello,
Configure the calculator to be in MathIO : [SHIFT][MODE][1:MathIO].
Press the Integral key, the one judt beloe the [ALPHA] key.
The template of the integral appears, with the cursor in larger rectangle. Enter the function the screen displays the integral, a small upper sqaure, and a small lower square. The left parenthesis of the function is already supplied by the calculator.
Press [ALPHA] X to enter the argument of the function.
Press the right parenthesis.
Remain the limits.
Use left arrow to move the cursor just before the s of sin and press down arrow to enter a numerical value for the lower limit.
Press the up arrow to move cursor in upper square.
Key in the numerical value of the upper limit.
Press [=].

Warning. To have meaningful result, make sure the angle unit used is conform to the problem you are trying to solve.

Hope it helps.

first try to see the cursor is not within the cell blinking cause sometimes when the cursor is within the cell it traps the controls and will not able to function on your desire output. so try to observed it again.

Hi, your first problem (and possibly second problem) sounds like it's the "Insert" function on your keyboard. I've seen this a lot. Find the Insert key on your keyboard. It's normally off to the right side with the Home, End, Page Up, and Page Down keys. When you have the problem, press the Insert key and then keep typing. It should toggle between the cursor moving with typing, and not. If this was helpful, please rate my response. Thanks!

This fix also works for the LX 710 Cordless! Yay! Thank you.