Does your N1 volume rocker make that clicking sound when raising AND lowering the volume,I don't want this to become a bigger problem and am thinking of contacting HTC,mine doesn't click when lowering the volume.
You can hear a sound when you press up or down but I would not say it's a loud click. Pressing a button usually gives you some audible sound. It's normal.
The hardware itself makes a very slight click (only audible when it is right next to my ear and there is no background noise), and I can very slightly feel it, but nothing out of the ordinary, it is a button after all. The only sound I hear beyond the hardware click is when raising and lowering volume, it gives me a sample "blip" so I can hear the level. Nothing more.