I was using the Pantone Color Books as I would in CS5. I expected to see the colors in numnerical order but the numbers jump around plugging in the 7500s randomly. If I type 133 to get that color in the Uncoated, I get it. If I type 133 in the Coated, I get 330. Unless there is a preference for setting this behavior, I think it is a bug.
2 x 2.8 GHz Quad-Core Intel Xeon, 8GB 800 MHz DDR2 FB-DIMM
I was not aware until today that Pantone had put out two sets of color books: e.g., those marked as PANTONE solid uncoated with another set named Pantone+ Solid Uncoated. The latter is not in CS5 applications. It is that set, the Pantone+ set that has the higher number co-mingled with the lower numbers. Both sets are resident in the Photoshop CS6 color books list. I am glad about that.
As for the typing in 133 to get 133C and ending up on 330C--I did it at least six times with no luck and quit the application to have dinner. I have not been able to produce that again.