SB-600 - clicking noise on power on?

[pcapazzi]

Just wondering if it's normal to hear a clicking noise from an SB-600 while powering up. It seems to operate normally beyond that.

[Al Brown]

G'day,
i own an SB-600 and have not detected any clicking sound when powering up. Sounds like u have a little relay built-in!! but since it works normally and yr pix neatly exposed, i think u should not worry.

Ynot, just before the warranty expires, u return it to Nikon for a check up