Hello all, i'm really new with linux, i have knoppix and i just love it, but i have been trying to install my modem for my dial up conection but it doesnt work, some times it say "modem is busy" and other times is "modem not response" so i have readed a lot about it, and i know that first i have to login as the root (and i dont know how) i know that i have to use "su" or "sudo su" but, where do i put that ?? and how i know if i'm the root or not ?? where can i see it ?? and then i have to select with comX is my conexant modem port (i.e. com0, com1, com2, etc) and i have been choosing all 16 com port and nothing, just errors and more errors, can somebody please guide me about how to do this step by step please ? :$

Thank you really much..

(By the way, sorry about my bad english)