I am challenged with anything electronic, and I have messed up my laptop and don't know what happened.
I don't have a mouse, and my cursor has a habit of scrolling around on its own.
Today I was typing, and the screen kind of bleeped, and now I have a mess.
At the bottom of the page, where I usually have my time and date in the bottom right corner, I now have a shadow across the whole bottom of the screen. I can see my icons vaguely in the background, but I can no longer find my little box for changing text size, and when I'm in a document, I have no way of seeing the page number or total pages in the left lower corner. There's just a narrow box along the entire bottom with blurry stuff behind it.
Can anyone tell me what I've done and how I can fix it? I'm so intimated by this thing.
Thanks for any help.
I don't have a mouse, and my cursor has a habit of scrolling around on its own.
Today I was typing, and the screen kind of bleeped, and now I have a mess.
At the bottom of the page, where I usually have my time and date in the bottom right corner, I now have a shadow across the whole bottom of the screen. I can see my icons vaguely in the background, but I can no longer find my little box for changing text size, and when I'm in a document, I have no way of seeing the page number or total pages in the left lower corner. There's just a narrow box along the entire bottom with blurry stuff behind it.
Can anyone tell me what I've done and how I can fix it? I'm so intimated by this thing.
Thanks for any help.

I used the letter opener's sharp tip, held the button down a few seconds and the light went off.
Obviously, my nail failed the procedure. Still, more shopping around to get a better device that does not require batteries. 