Hello Alex, I have a US Robotics modem and I have to do the following run the isapnp commands pnpdump -c >filename then isapnp filename then it will say board 1 found at.. and give a lot of info what you are interested in is the port 0X3F8 or something like that and the IRQ that it lists then I do setserial /dev/ttySY irq y port 0xyyy where y is the parameters specific to your system. You may want to add this to a boot script when you figure it out.. I add the isapnp commands and the setserial and direct it to /devnul and my system works happily. The serial and modem how tos are good resources too. Sincerely, Patrick --- Patrick Turnage Pac Mate Gear CoWebmaster E-mail: patrickttampabay.rr.com patrick at pacmategear.com Web Site: http://www.pacmategear.com PAC Mate Gear: For All Things PAC Mate Home Page: http://www.access-connect.com AOL Instant Messenger:kg4dqk MSN Messenger:turnagep at hotmail.com