Here is an intersting problem. In a small peer-to-peer network. A Windows XP Home device and a Windows 98SE device share files. If the XP device opens a file, and the 98 device opens the same file, the 98 device receives a READ-ONLY warning. Fine right? However, if the 98 device opens the same file first (or any file) the XP device can still open that file and write to it. The 98 device will then lock-up. Any seen this before? Any ideas?