I installed the latest version and first the siteurl and home were all wrong at the database, got that sorted out. But now accessing the wp-login.php page it says on the addressbar "wp-login.php?redirect_to=" instead of "wp-login.php?redirect_to=%2Fwp-admin%2F". After I hit the "log in" button it does actually log me in but redirects me to a blank page (at wp-login.php). When I try to log out from the dashboard it does kinda log out but it stays on the dashboard page but the addressbar says "wp-login.php?action=logout".
I uploaded another wp-login.php file but that didn't work.
If someone from Finland is reading: the site is on Sonera, haven't had any problems with other hosts before.