Hello Russ, Saturday, May 28, 2005, 7:34:42 PM, you wrote: RC> I don't understand how RC> using standard input and output could break RC> Twrite transactions. That's only begining... Get out initialization of infd and outfd, so both should be 0... result the same! in one window: cpu% aux/listen1 tcp!*!33 /usr/rlab/encsrv/xorfs -s in another: cpu% 9fs tcp!myfs!33 post... cpu% cd /n/myfs!33 cpu% lc ctl data enc key cpu% echo test >data echo: write error: mount rpc error cpu% and this on 'black screen' mnt: proc rc 193: mistmatch from /net/tcp/8/data /n/myfs!33/data rep 0x80bfd6f0 tag 8 fid 453 T120 R119 source is attached... Sergey -- http://rs-rlab.narod.ru mailto:rs_rlab@mail.ru