Actually, I did and there were no BIOS settings related to USB AutoDetection. USB did auto detect when the same computer was running XP Pro & I made not BIOS changes when converting to Ubuntu.
Another twist: Running IOGear GCS1802 KVM / USB Hub connected to USB 2 port. Since it is connected at Boot time, it is recognized. And, any device I attach through its USB Hub ports after boot auto connects - f-spot, gphoto-2, lp,...
Could KVM / USB be interfering with other USB ports?
Thanks for your reply.