Question : Windows 98, 90 mhz pentium, and network card

I have a 90mhz pentium computer that I bought back in 1994 from DEC.  It is running Windows 98 upgrade, and originally had from Windows 3.1  I am trying to install a network card into the computer to use with a cable modem.  The network card is a AEF-360 TX Family PCI Fast Ethernet card.  The box and manual for the card says that the cards supports both 10BASE-T and 100BASE-T networks.  The card came with drivers on a floppy disk.  Windows 98 successfuly recognizes the NIC, and I am able to tell it to use the drivers on the floppy disk, and everything seems to install just fine.  But after rebooting for the last time, and looking in the system properties dialog, the NIC shows up under the PCI category, and has a yellow circle with an exclamation point in it.  The properties dialog says that the system did not assign the card an IRQ number.  It says the device must be enabled in the bios.  What does this mean?  I am very computer literate, but am not that familiar with computer bios.

Answer : Windows 98, 90 mhz pentium, and network card

Not a problem, glad to help out.