Curor changes to wrong type and have to click

Hi and good day. I have been noticing lately that my cursor on messages seems to be confused as to what shape of cursor is needed at a certain place on the page. For example I bring up a message and then suddenly my cursor changes to a down pointing arrow even in the middle of the page. So if I want to close the page it stays that way and I have to select a dead space in order to get it to be an ordinary cursor to be able to do what I wanted to do. Clicking with the down arrow does nothing when I click with it on say a button but it changes to a normal cursor and I have to click again for it to work. Just an observation. No attachments showing this as when I goto do a screen copy the cursor disappears. Sorry