Ethernet card could not be initalized

Dual boot with Win2K and Redhat 7.2. When Redhat
installs, can connect via Cable modem to Internet.
When I reboot and start Redhat, can not connect
to Internet. Using 3Com-3c905c card. Irq shows
as 0. Receive message that the ethernet card
can not be initalized. Help, I am new to Linux.