I have had Photoshop Elements on my Mac laptop for about three years. Last week, a small white horizontal bar popped up in the bottom of my screen. After the white bar appears, even if I click on the X and close it out, anything I click on on Photoshop is deleted. This makes it impossible to type any text. The white bar is also on Adobe Reader and it doesn't appear anywhere else on my laptop, so I feel confident that this is an Adobe problem. Any ideas what this is and how I can get rid of it?
The white bar is your input helper and is controlled by your system's language and keyboard settings. Nothing to do with Adobe. Check the relevant system control.
Sounds a bit like the MacOS dictation "feature" that causes problems in many programs, until it is turned off.