I just got this really old PC, I found an old ISA card in my house and installed it. The PC works fine on the network. I can read/write files from the PC's on the network, but as soon as it tries to go online, it crashes, illegal error. If I try to go on AIM, AOL, IE, IRC, or lets say winAmp open URL. ANYTHING would crash if it tries to access the net. I dont know if its the ISA card as It works on LAN. what else could cause this?