So, this is probably simple and stupid but I was hoping someone knew a quick fix before I actually research it.
My thumb button on the mouse usually does things like Autorun, but more importantly its the 'back' button on my browser. It no longer does that. Nothing (to my knowledge) has changed recently. It now acts as the Menu button on the keyboard, and in games.
Is there a windows interface thing that might change that? I dont use any macros.