Stupid Internet Explorer Question

[GeorgeTH]

On my wife's computer IE doesn't open the "Password Dialoge Box" when you need a password to log into a site (instead it jumps straight to "Authorization Required" screen) - now we are often submitting from that machine and have several sites which require a pwd to access the submission page - no luck!

We are using IE because we submit with RoboForm (and the newer "free" versions, which work with Mozilla, don't have sufficient custom fields) - hence we're stuck with IE...

Any HELP? [Google wasn't]

Additional info: Win XP Pro, (twisted pair) Networked, ZoneAlarm, IE 6, my wife's computer connects to Internet thru my ADSL...