I have a theory that as of kernels 2.6.18, if you want to use a tripletalk synth, you have to compile the ltlk driver into the kernel. If you don't,when you do this: # echo ltlk > /proc/speakup/synth_name you're kicked out of your shell and back to the login prompt. i've noticed this behaviour with grml, Shane's 2.6.18 kernels, Shane's etch installation iso, and my own kernels. However, when I compiled the ltlk driver into the kernel, it works. I made a couple of live CDs and I kept having trouble initializing the tripletalk until I compiled the driver in instead of having it load as a module.