Here is what I've tried:
- reinstalled Original Alps Driver and restarted
- reinstalled Original Alps Driver a second time using Windows Back up and Recover
- made sure the mouse settings in Control Panel were correct
I think it could possibly be a hardware issue as pressing the right click key is not responding or opening any options, however, I haven't spilled anything on it or dropped it. My last option is to ship it off to Sony but my warranty expired a few months ago, and I looked at the price list and it is crazy expensive.