I've downloaded the Ubuntu virtual appliance, but can't get internet access. I'm using an iMac 27" with Airport. I've tried shared and bridged, but neither function. Is there a fix for this in the works???
Please try to switch to Shared and reboot Linux-guest.
If this doesn't help, execute in terminal command "ifconfig -a". Then, without closing the window, click Parallels Destkop menu "Help"->"Report a Problem", send a problem report (it is not necessary to provide description) and post here the report ID.