I have a new laptop Lenovo B580, with Windows 7. As I write, the window sometimes loses focus and I cannot write anymore. Or it happens that the cursor moves within the window. It behaves like is a random "click" - when I move the mouse/touchpad then, the text is selected.
It happens when I use mouse - and I really don't touch the touchpad :-) And it also happens when I use the touchpad only. Strange.
When using mouse, I tried to disable the touchpad with the Fn key, the B580 displays that the touchpad is disabled, but it still works.
- the problem is not in the mouse, the problem still appears when mouse is unplugged.
- there are no "overlay" apps in the tray - only the standard ones, which came preinstalled with the computer - adding a screenshot: