Restricted Area?

I am having trouble accessing a administration area on one of our web sites. Usuallly all I just write in the user name and password and in I go. Now before I get chance to get to fill in the user name and password a blue windows login box appears on screen saying "restricted area" with blank spaces for user name and password. This box is definatley windows based rather than the web site its self. It has a drop down box with previous usernames that have been entered and these are all MSN Messenger login names. Only my pc has the problem, my boss can access it in the usual way. I have cleared cache and reset security in IE to default but no deal. Any ideas? Thanks.

 

woz--Is this something new on that particular area/website? If so, will your company's policy permit a System Restore to a date before it happened?
If this is the first time you have tried to enter the area, this may explain the situation
http://msdn.microsoft.com/msdnmag/issues/03/05/CuttingEdge/

 

It is the first time on one of the sites but not on one of the others. I really think the dialog box and the password thing is just windows based. The password I have to type in on the site is in a completely different format and is part of the web page (if you know what I mean) The password box is definatley a windows one, it has the windows keys on it like when you have to register your copy of windows and the colours etc are exactly as the messenger login box. I would paste a picture of it but I dont know if its possible.

 

woz--You have to be a "Subscriber" to WindowsBBS to be able to post images. Well worth the $20/year if you plan to come here often.
http://www.windowsbbs.com/subscribe.php
I assume you have no IT person within the company? Is your boss willing to give you a little help like permit a System Restore?
If this is a problem related to Windows Messenger, you could try uninstalling WM.
http://www.pchell.com/support/removemessenger.shtml