I have one system (known so far), out of 100, with ATX motherboards and Mitsumi 3.5" floppy drives, on which reading from the floppy works fine, but writing to it hangs NT Server 4.0. No blue screen or anything, just totally unresponsive. Has anyone seen anything like that? David G Need help with PCBUILD: [log in to unmask] or http://nospin.com