First time login redirect does not work in IE6, IE7, FF2.x, safari 4.0

This bums me out because otherwise this module is sweet.

The "force user password change on initial login" fails when logging in for the first time in IE6-7. A client reported an issue in firefox as well, but I only have 3.5, I'm assuming the client is using firefox 2.x or something... It also happens in safari 4.0 -- the module works beautifully in Chrome, FF 3.6 and even IE8.

But when logging in with any of the above-listed trouble browsers for the first time, I go right to the /users/username page, per drupal default behavior.

The truly bizarre thing is... when i log in via Chrome ( or other "good browsers" ), I get redirected to the force password change screen ( edit password with drupal message ) and as it should, the module doesn't let me see anything else.

If I THEN login to one of the "trouble browsers" -- after having logged in once before -- I get the redirect and error message as expected. BUT if I try to login to the "trouble browser" before logging into the "good browser" I get no redirect, and i'm allowed to keep my initial password.

I have logintoboggan and persistent_login also installed, but no other user login modules.
I know logintobaggan has a redirect setting, but I deactivated it in the module configuration.

Perhaps one of these is the culprit -- I'm uneasy to deactivate because it is a live site... Also, if it were another module conflict, why only in certain browsers?