When using GNotebook, I have had Internet Explorer 6.0.2900.2180.sp2 go nuts TWICE. It, on its own, spawned a bunch of extra windows. I assume it kept going until it ran out of whatever. Now I have never seen IE6 do that before. I don't know what causd it. I've used without it happening. And, I've never seen that behavior with Firefox1503. So be advise!