Wow, that's really odd.
I'm going to rejumper the WarpEngine ones later today and see if that fixes my problem there. So far that only works on LUN 0, with the PCMCIA.
Now that I think about it, the 4000T didn't care for SD cards, but PCMCIA and CF work great.
I'll retry the selection of cards I have with device 0 and give a full report on PCMCIA, CF and SD slots. I've got no media for the others.