I'm convinced there's something about the IE settings on this machine that is the cause. Not sure what yet. Because another machine on this same network with IE6 on the same proxy server and everything has no trouble getting to gmail. So it's gotta be something I did. I'm having trouble finding the setting that I might have changed....

It's not any of the security settings because I made sure all my zones were set to default and got the same behavior. I don't think it's any kind of popup blocking software because I turned all of that off and besides it also happens in MyIE2 equally, and I've turned off all its content filtering too.

Very stumped...