Personally I'm not very familiar with how drivers are loaded in linux. I know our system is a standard debian server, and the procedure for adding the serial port drivers within Pluto would be exactly the same as in any other debian system. Normally frequently used hardware is automatically detected at the bootup process when the discovery utility runs and tries to determine what hardware you have. My guess is this means the drivers are not included in the standard debian/Linux distribution. Since you indicate this will be a fairly common device for smarthome systems, what we should probably do is compile the driver ourselves and manually added to our kickstart CD, even if it is not standard in debian. The guy who works on the kickstart CD and knows everything about compiling and installing Linux drivers will be in the office on Monday from 8 a.m. to 4 p.m. GMT, which would be 2 a.m. to 10 p.m. in New York. Are you going to be around at your computer during that time? If so you can start a live chat on our web site, and we can transfer you to him. If those hours are not convenient, you can also turn on the remote assistance feature in the Pluto admin web site (Wizard, security, outside access), and leave it running for him to look at when he gets in the office. You would need to send me an e-mail with the password and installation you choose (my username @plutohome.com). Then he can manually install the drivers for you, and see what is necessary to make them automatically recognize the card so they are automatically installed in the future.