Thank you both. I'm going to spend some time with the Expodisc and see if I can get it to work.
The walls are off white.
I do have florescent lights overhead. But even when I turn them off it doesn't seem to make a difference.
I could also try setting WB to flash, thank you, I have tried clicking flash post process in Adobe Camera Raw but doesn't make any difference, can't remember what color I got when I did that but it was not right. I think it was too yellow/warm.
The output on the Alien Bee is way way down, near the end, low output. Small studio and softbox is close to subject.