I recently upgraded a Windows NT 4.0 server to a multiprocessor kernel (2 Pentium Pros on a Micronics M6Me dual processor m/board) and service pack 3. Now, when I try to format a floppy (on any of the 2 1.44 floppy drives) I get an error saying 'Windows NT unable to complete format'. When I try to format from the command line I get 'device is busy'. I can read, write and delete files from a floppy as normal. I booted from a Windows 95 system floppy and was able to format as normal : so it's DEFINITELY NOT A HARDWARE PROBLEM. Help.