M600 Lenovo Malfunction

[Bloodsaw132]

My top side mouse button doesn't work, but is "tabbing" over everything in a twitchy manner. What is the cause? In games, it just quick twitches. In browsers, it keeps selecting things as if pressing the tab button.

 

[jay32267]

It's probably just failure of the mouse itself.
It's probably not easily repairable.
I think it might be time for a new mouse.