Authentication Problem with IFrame Portlet for IE9

• Type: Bug
• Status: Closed
• Resolution: Won't Fix
• Affects Version/s: 6.0.6 GA
• Fix Version/s: 6.0.6 GA
• Component/s: Content Display Widgets > Iframe widget, Mail
• Labels: None
• Environment: IE 9 ,windows 7

I have configured Iframe Portlet to Send Receive mails of Exchange Server.Its working fine in all other browsers
other than IE9.In IE9 When I try to Enter User credentials user does not get authenticated even after providing Proper Credentials.Things are working pretty well in All other browsers.

Same problem replicate with Mail portlet as well.While configuring gmail account on Mail portlet it continuously prompts for authentication due to Authentication fails

Note : Both Problems are reproducible in IE 9