I have successfuly upgraded to WordPress 2.6 today and my next step was to update my Google Analytics for WordPress plugin to version 2.5.6. After that I went to the Google Analytics screen in the WP admin panel in order to check the settings but it won't accept my UA ID. I write the ID correctly and click update settings but I always get the same message, "Google Analytics is not active. You must enter your UA String for it to work."
It was working perfectly (so I'm sure I use the right UA ID) until today that I updated to version 2.5.6.
Any help would be appreciated.