New pfsense system freezing especially when no LAN is connected

[sjitan]

I'm having issues with Jetway J7F2WE-2G with the 3 10/100/1000 daughter card.
The system will just hang in random places or if I try to update an interface card it'll just freeze.
Also, I've noticed if I'm configuring an interface and it's not connected it'll also freeze.
I've replaced the memory and hard drive to eliminate that issue, can anyone point me what to do next for testing.
P.S. I've tried pfsense 1.2 rc2 and rc3 for testing.

Thanks

[Accounts]

Under the Advanced tab try turning off the tcp/ip offload.