wpmu clean install + multi-domain = Internet explorer login redirect error

Hi,

I did clean instalation of wordpress 3.2.1 multisite. Only plugin instaled is your multi-domain.

Now I have problems when i want to login using Internet explorer 9. It always returns back to login form and url changes to
"http://domain.com/wp-login.php?redirect_to=http%3A%2F%2Fdomain.com%2Fwp-admin%2F&reauth=1"

Chrome, Mozilla Firefox and Opera don't have this problems.

I tried changing IE privacy settings to lowest, disabling all blockings, deleted chache, erased cookies... but nothing helps. I tried few solutions from the web, but nothing worked.

Any solution? Is it possible, this is "Multi-domain plugin" bug?