Jumbles

It makes a clicking sound once when it's pressed and again when it's released. That's as good as I can get I'm afraid. However it does feel and sound different to the right mouse button. It's much less tactile and quite muted. I can't remember what it sounded like when it was brand new.

I've done virtually nothing for the last 24 hours except play Elite: Dangerous but you're right... it's happening in all programs. edit - holding down the left button for about half a second then releasing it seems to get around the double click.

Happening to me too. Started yesterday too. I've only noticed it happening in Chrome and Windows Live Mail so far. Win 7 x64 M65 RGB fw v1.13 K95 RGB fw v1.13 CUE 1.1.56