ATmega328 in a Diecimila board

I have a Diecimila board with an ATmega168 chip in it. I also have a ATmega328 chip from Arduino. Is there any reason why I shouldn't put the 368 chip on this board? I see that isn't an available combination in the pick-list under Tools | Board in the version 0016 IDE so I chose the Duemlanova w/ATmega328 and it seems to work OK.



Nope, the 328 should work fine.

Thanks, DMan.