Originally Posted by Kerl
I haven't noticed this since I bought mine in April, maybe it's wear and tear from clicking a lot? its a unibody design so maybe the shell has an alignment issue.
It's brand new, but I've fixed it. I opened it up and the USB cable that plugs into the pcb was snagged in the corner and rubbing against the plastic stem that pushes the switch. For those that might have the same issue:
The cable that connects to the top shell to the bottom shell can be pulled straight out. The blue side goes towards to top of the mouse when plugging it back in. The molex styled connector that comes from the USB to PCB can also be removed, just hold down the male end (the part soldered to the pcb) and pull on the connector and it should slide out.
From here I just flattened the entry cable to fit better for the grooves at the top where the cable is snaked in. Then where you connect the molex to PCB, I tucked the wires between a capacitor and the male connection so they aren't bent upward and instead snug to the PCB.
Now that I've taken it apart, I might buy some matte clear coat and see if that gives a better coating against sweat.Edited by gene-z - 8/14/15 at 2:39pm