Cannot connect
 

Hi, Im not sure if this is the right place to post this but I am having a serious problem that I really need help with. I have a high speed broadband connection [road runner] and I have 2 computers connected to the modem, a dell laptop and a compaq desktop. both connect to the internet just fine i can browse the internet with no problem. However the laptop can use bearshare problem free but the desktop cannot even connect to it. can anyone please help me? ive been trying to figure this out for months now. i am open to any suggestions. thank you