I'm running Fedora core 1. I replaced an old Matrox video card with a new Radeon. I've got a 3com 3c905b (?) network card. I've never had a problem with it. When I rebooted the system, Fedora comes up with this new device install screen. It asks me if I want to remove the Matrox card. I say yes. Then it asks me if I want to install the Radeon card. I say yes. Now comes the kicker. Fedora tells me it can't find my previously functional network card and asks me if I want to remove it. I say no. The boot continues by my network card is disabled. I haven't been able to get it back.

This appears to be a software configuration problem. The network card has flashing lights etc on it...

What should I do?

Can you show me the output of /sbin/lsmod and /sbin/ifconfig?

I figured out the problem. Apparently it was an IRQ conflict. I swapped the cards to different slots. When I rebooted the machine, the bios told me that the Promise controller and network card were sharing an IRQ and to make sure this was okay. I clicked okay and things went fine.