Every time cups is updated I have to check mime.convs and mime.types to ensure that references to handling raw file types are uncommented otherwise we notice that one of our printers stops working because the files are overwritten by the updates. Should config files not be left untouched? We do have 'print command = lpr -r -oraw -P %p %s' in smb.conf but this on its own didn't make the printer work. Do I just need to keep checking or is there a better way Oh, Centos 3.4, by the way! Thanks Nigel Kendrick