I have installed Elementary recently and all works wonderful. I only fight with this issue.
The cursor or mouse arrow is clicking constantly for a while. Then it mostly stops for a minute and comes again. Of course it is impossible to select a window or write a text. This problem does not appear right after system start. It often comes after a while or when I login again. Wherever I leave the mouse arrow it starts clicking.
I unplugged the mouse (apple mouse) and keyboard and it keeps on clicking. I investigated across the web, but could not find a solution. Thanks in advance for any hints.