I emailed a new version of a db to a client as an attachment. We’ve done this many times before using the same version of Access 2003, Firefox and XP Pro. She saved it to the desktop and tried to open it. She gets the message, “Cannot open this file. This file is located outside your local intranet or on an untrusted site….” (She’s not on an intranet.) She can go to the file properties and unblock it. Then it opens normally. The problem is this is about to be sent to a bunch of users and I’d rather not have to talk them through unblocking. Any idea why this has occurred and why it hasn’t before?