I've had the same problem with Poser 7 and 8, but always blamed my computer or mouse for it.  I think it's been broken since Poser 6 which I didn't use very much because it stunk.  I find trying to get the dials to a specific number is impossible so I too have to enter the numeric digits to get what I want.  This worked in Poser 5.

Poser 2, 3, 4, 5, 6, 7, 8, 9, 10, Pro 2014, 11, 11 Pro