The status bar in Safari keeps becoming visible of it's own accord. Does anyone else get that?

I like to keep it hidden; generally, it’s a waste of screen space. (The status bar being the bar at the narrow silver bottom of the window, which you can hide/show under the ‘view’ menu.)

It’s only been happening recently… and I’m using the latest release version of the browser, on Mac OS X Leopard. Does anyone have any answers? Does this happen to you? It’s driving me nuts in the subtlest way possible.