Laptop ethernet won't work

[Olwe Melwasul]

Got F2 (kernel 2.6.5-1.358) installed on my Presario 2100 and 
dual-booting well with the original XP (BootItNG did the trick for 
repartitioning the NTFS). But the modem doesn't work (Linuxant says they 
have a driver) and the ethernet card won't do anything. It's the 
built-in NatSemiconductor DP83815/816 10/100 MacPhyter PCI. It's eth0 
and I've given it static IP of 192.168.0.11 and everything seems to be 
fine. During boot it comes up and the Network GUI reports it "ok" and 
"active". But the hub light is dead and no pinging gets through. Same 
ethernet works perfect when I boot to XP. One tell-tale thing is on shut 
down it reports "remaining active for wake-on-lan". Another odd thing is 
according to the GUI, it gives "unknown" as the IRQ address. XP says 
it's 11. Any ideas?

Olwers