On the Avira forum issue:
1. I use IE8 with Favorites shortcut to access the Avira user forum. It's link that I use is below.http://forum.avira.com/wbb/index.php?pa ... a58ef9a972
2. If I attempt to login as shown in AviraForum1 attached picture via the login option at the very top of the forum, SP does not fill in the login info.
3. If I attempt to login with the login option further down on the page, SP does properly fill in the login info as shown in AviraForum2 attached picture.
I do not have any previous version downloaded installers of SP left on my system to try this with my new Windows 7 installation. I'm "pretty" confident that it use to fill in the login option that I show in (1) above.
I hope this info helps.