W2000 floppy issues

Some of our Windows 2000 machines seem to have a problem releasing previous processes to allow for new process when using the floppy drive. For example: If a user is formatting floppies, the first formats with no error, but when attempting to format a second floppy, PC returns a message that says A: is being used by another program. Any ideas for a fix? This also happens at times when trying to access or save files to A: Thanks. 🙂