All, I'm working with the developers of grml to update the accessibility of their live CD. After booting from the test iso they sent me, I tried to load the speakup module for my doubletalk LT. An error message (reproduced below) was generated. I checked that the /dev/ttyS0 exists and I echoed a string to /dev/ttyS0 and my synth spoke it. So I know my synth is connected properly and functioning. root at grml ~ # modprobe speakup_ltlk FATAL: Error inserting speakup_ltlk (/lib/modules/3.1.0-grml64/kernel/drivers/st aging/speakup/speakup_ltlk.ko): No such device 1 root at grml ~ # file /dev/ttyS0 /dev/ttyS0: character special root at grml ~ # echo bogus >> /dev/ttyS0