I bought two NICs.  Now I may have a chance at getting the other one to work with your help.  I have a Realtek 8139B Chipset NIC, and the drivers install fine for it.  Windows shows it working properly, and if I unplug the cable it detects that the cable is unplugged and notifies me of it.  However, when I try to get on the internet, nothing works.  I use Comcast Cable, and DHCP is enabled.  I disabled the windows firewall, but nothing changes.
The Data Invalid part.
I have a 3Com card that works great in this computer, no problems installing. When I put it in the other PC, it says that the data is invalid. If I manually install it, it says "The device cannot start. (Code 10)". Is this because I just tried to install manually (picked Network Cards and selected the 3Com and LinkSys NICs.)? Why does it says The data is invalid when windows auto installs on boot-up? I have moved the NICs in all of my 6 PCI slots and the same thing happens. I really need help fast.
			
			The Data Invalid part.
I have a 3Com card that works great in this computer, no problems installing. When I put it in the other PC, it says that the data is invalid. If I manually install it, it says "The device cannot start. (Code 10)". Is this because I just tried to install manually (picked Network Cards and selected the 3Com and LinkSys NICs.)? Why does it says The data is invalid when windows auto installs on boot-up? I have moved the NICs in all of my 6 PCI slots and the same thing happens. I really need help fast.
				
		
			