Please help solve the problem, install openatrium-6.x-1.7-core. I write to the database settings, the page refreshes (again requests the database settings) and the message is not generated.

Sorry for my English, translated by Google.

system Settings:
Windows 7 Professional
IIS 7.5
php-5.4.15-nts-Win32-VC9-x86
mysql-5.1.51-win32

Comments

Please look at http://drupal.org/node/557898 (Windows Download Instructions). I hope that helps.
Or use XAMPP (with apache) instead of IIS.

Wusel

XAMPP, WAMP or Krasnal - you can choose.