I have the gmail notifier installed and usually tried not to have too much icons so that the tray was not expanding over the last "slot".

But now I discovered the large statusbar clock

I had the gmail notifier in the last slot, because if any new mail was notified it was playing a sound, so no need to have it visible.

In fact it appeared in the beginning that the statusbar was locking opened only when I was opening the notifier menu (i.e. "Check mail now" etc.), so I did end to open it and just checked the icon appearance, but it happened again.

I'll try to move it in one of the first slots so that it is not in the expandeable part and report the results.