I upgraded from 1.4.2 with extension key magento-core/Mage_All_Latest
This upgraded MCM to 1.5 successfully. Then I want to upgrade Magento Files to 1.5 with this extension key: http://connect20.magentocommerce.com/community/Mage_All_Latest
The only thing which is happening: it shows for 1 sec the \"please wait\” dialog. nothing more.
Then I try with \"check for upgrades\” and this leads my to a white page with this URL: downloader/?maintenance=1&updates;=yes ?!?
Another strange behaviour: When I click on \"Extensions\" it lead me to this URL: downloader/index.php?A=connectPackages And when I click again on \"check for upgrades\” I get an empty \"index.php\" for download?!?
Any suggestions here? Am I doing something wrong?