I recently upgraded our site to 4.7.0. The upgrade seemed to go well, but now there is a problem when starting it up fresh.
The first time I try to start it, the initialisation seems to get lost in an infinite loop in the routine .../civicrm/civicrm/CRM/Utils/File.php on line 680. Using a debugging statement, it seems to be looking for the file pattern "info.xml".
The weird thing though is, that it starts OK if one tries for a second time without closing the browser.
What could the issue be? I have done no special customisations to my installation (as far as I know)