cursor jumping as I type

Crazy new problem here as I type. For some unknown reason my cursor has been "jumping" from the line I am typing to other places like the find box, the address line, to a previous line in my text. In fact it just now jumped back 3 spaces on the same line that I was typing. At first I thought it was because I must be hitting a key next to the letter chosen or that the side of my palm was hitting another key. Even when I (just happened again) one finger peck, it still does it on its own. Might anyone here speculate as to what this strange behavior is being caused by??

Thanks Mellon Head, but it didn't jump. Tried typing with alt key pressed then released and with alt key static. No luck. Appreciate the effort.

Haha. No its a laptop but you raise an interesting issue with keys being stuck. Usually, but not always, the jumping occurs when I am at the end of the sentence or hit the backspace key or the period. I will try to be more observant and see if some kind of pattern is prevalent. Thanks for your concern and input.

Generally this is caused by the drivers for the touchpad, see if you can find some newer ones - if you list the make and model I'm sure somebody will point you in the right direction.

Even if I exclusively use a mouse only??

Yes, if you only use a mouse then try disabling the touchpad.

Will do if you can tell me how to do that?

I googled that and found how to do that. Thanks for the tip. Will report back tomorrow or when it does it next time.Thanks to all for their thoughts. Glad you folks are here to help us dummies.