Small dot trailing cursor in Swing application

Question

There is a small dot that keeps trailing the cursor on a Swing application as I move the cursor about over the application frame. What is causing this?

Answer 1

Can it be an empty tooltip? Is the getTooltip() method implemented for the frame (or other component you are hovering over)? If you don't want the tooltip, you should return null, and not an empty String.

Answer 2

I keep getting the dot on login windows for Livejournal, Facebook and various websites. I actually am getting it in the upper right of my cursor.

It's pretty annoying. I've wondered if this is some sort of keylogger?