Thanks for the routing tip.

I have been using 3.6 for a while and thought it time to update to 5.01. It all boots fine and appears to work but refuses to connect to the network. ifconfig reported that it had got its address from the DHCP server. resolv.conf looked OK but nothing would route out of the box.

I opened up a console and typed in your two lines of magic incantation (preceeded by sudo) and all is now hunky dory.

Cheers