NetBSD 5.1 AMD64 not recognize ethernet card

[patricio retamales <patricioretamales1%gmail.com@localhost>]

Hi,
I have a laptop Acer Aspire 5738 and I installed NetBSD 5.1 AMD64, but
ethernet card is not recognized.
I have recompiled the kernel with this options

options     PCI_INTR_FIXUP        # PCI interrupt routing via ACPI
options    PCI_BUS_FIXUP        # fixup PCI bus numbering
options    PCI_ADDR_FIXUP        # fixup PCI I/O addresses

but still the ethernet card is not recognized.

Ethernet card and wifi is recognized in NetBSD current, but I can't use
NetBSD current because I use NetBSD for the work.

Any suggestion?

Thanks.