I have two PE 2650's RH AS 2.1 running the 2.4.9-e25smp kernel. These both have the Broadcom Gigabit Ethernet Driver bcm5700 with Broadcom NIC Extension (NICE) ver. 2.0.28 (11/05/01). Since I have upgraded to this kernel I've had a couple of situations where it appears that the systems have locked up. I'm able to ping each host during these lock ups.