Bug? Nautilus and/or Application-Browser don't quit on close.

A Chairde,
Ive noticed a somewhat annoying occurring ‘bug’ on my openSuSE 11.3 install.
neither nautilus or application-browser (which is just **** slow!) quit when they are closed. They remain resident and this is evident in the System Monitor.
I can kill them no problem, its just annoying that they’re staying resident and sometimes consuming a large (-er than normal) amount of memory.

Ive attached some screenshots.

Ive also noticed Chromium seems to spawn mulitple chrome threads. One per tab, which is normal, however sometimes they dont die off either. But that could be an issue for the Chromium Developers to figure out!

Any thoughts?

Le Meas,