Go with Franks advice - it's relatively current and appears to have done the deed. I'd suggest you stick to the manual dwnld. Update: Check (drag-n-drop) install_flash_player.exe's md5 ==> 7a00f09fd89cf49cf3ff4ef2e828adec In addition, make certain Firefox exits before the install. Assure this by opening Task Manager and killing off any instance. *As you may have guessed, these are the files and their (Win XP) default installation directory after a successful run. Assuming you're administrator, I'd like you to include whether the account you log in with is passworded? PS - After installing 3.5.6 and failing a first time due to a corrupt dwnld, she went off without a hitch. PSS - Yes, as to the top here I recall you mentioning. I'm think'in it might not hurt to reload FF.