I have been hearing a fan noise at my desk recently. Its faint and doesnt last long, but i hear it and given that i use a MacBook Air, which has no fan its been confusing me.

Turns our its my Dock! I assume that it has always had a fan. But, the tranqility of my life generally means i now hear it... or, more likely, the fan has got old and is making new noises. 😦

Will i need a new dock soon???