Hello I  am thinking of swicthing from a dail-up to DSL, my question is in order to do this do I need  a network card? or can I just use one of my USB or Serial ports?The reason I want to know if I need a card is because I had to remove my 56K PCI FAX modem card when I upgraded my video graphics card wich was causing my computer to freeze apperently the graphics card was causing my modem to over heat,I know this was the case because when I removed the modem everything was fine so now I am using a external 56K one but it makes downloading very slow.and I want a more stable connection.