Some cards seem to be problematic with Sarge's installer (especially Gigabit cards). I wish I had one of those 8169 cards here to play with, because it is supported (except for the recalled models which reported themselves as 8139 thus the wrong drivers were loaded). The cards that work here are: VIA Rhine II (on board), Broadcom BCM5705 (on board), Intel 82801BD PRO/100 (on-board), Intel eepro100 (PCI), Realtek 8139 (PCI).