After upgrading from 5.1 to 5.2, IE can no longer download/open files on the site. Mozilla, Safari, Opera all work. When I right-click on the file and go to save-as I get "The file could not be written to the cache". This has cropped up only since the upgrade to 5.2 from 5.1. The site is only accessible via SSL and the file system is "private".
running on Gentoo Linux, Apache-2.2.4, PHP-5.2.2, Drupal-5.2