Syeh, when you do the setserial there are a number of uarts you can try. The most basic one to try is 16450, then try 16550. e.g. setserial /dev/ttyS15 uart 16450 then do a setserial /dev/ttyS15 and ensure it's been set. COM1 and COM3 both share an interrupt. COM2 and COM4 share another. You can use more than one device, but not at the same time. For example, if the mouse is on COM1 then COM3 can't be used. But... This is the normal settings, you may notice in your BIOS that you can change the configuration of the serial ports, in which case things can change. Windows simply maps your serial port to COM2. IN the BIOS did you make sure that the Plug and Play controlled by is set to BIOS not OS? This is very important if you are dual booting. Did you try /dev/ttyS1? Maybe the modem is remembering something from it's windows set up? I'm not too sure on how to disable the check for serial ports. I think you need to make sure that char-major-4 and char-major-5 are set to off in modules.conf, and that the serial ports are compiled as modules for the kernel. Unfortunately there's not much more I can help you with. I had terrible trouble with my winmodem, and went out and both an externel modem. I got an ELSA modem for about $70. Things worked first time with it! Good Luck Rik -- To unsubscribe send e-mail to suse-linux-e-unsubscribe@suse.com For additional commands send e-mail to suse-linux-e-help@suse.com Also check the FAQ at http://www.suse.com/Support/Doku/FAQ/