I can't get any files to transfer via MSN file sharing, with I on a Windows XP PC that file transfer has worked with with every other Windows MSN user, and the sender on a new Mac with MSN 4.0. She gets a "The connection is blocked" popup right after I accept the trasnfer of the file, and then it ends. Likewise me sending to her. These problems have worked with everyone else she's tried sending files to. I'm betting these are firewall issues on her end, can anyone share how to help?