Main interfaces need consistent "working" indicator

At least on my box (a laptop a couple of years old running Windows XP and Firefox 1.5.0.10), the various interfaces like view and filter often take a number of seconds to come up. It's very hard to tell when the app is actually done working, so I alternate between waiting for it when it's already done and going to click on something and having it move.<br><br>I'd like to see a consistent "working" indicator. The two I'm used to from normal browsing are the browser "waiting" animation and the pointer+hourglass cursor. Both would be great, but I'd settle for the hourglass cursor.