Here's a strange problem.

We're able to boot an Acer 3600GT with a Broadcom NetXtreme BCM5705 NIC and connect to our imaging server with a Zen SP1 IR1 boot cd, but when we PXE boot, the driver (.tg3, the same one that's loaded when using the cd) is loaded but it doesn't work; we're not able to get a DHCP address.

Any ideas?