What happened to my *clicks*?

[Why Syzygy]

Okay, this is going to sound amateurish. But.

After the fresh install last week, my mouse started working as it did when new; sounding nice little clicks when buttoned or on page changes. It also has ALWAYS clicked on my game options while playing (even when not so on other applications). I was playing the game and suddenly all click sounds stopped. I rebooted, but still no more CLICKS! :cry:

Is this a setting somewhere? What else?