Hey all, I'm building an Aberrant Mind sorcerer, and it's unclear to me how many of the Psionic Spells listed for 1st level on the spell table I'm meant to get at 1st level? Using the character builder, it's given me Mind Sliver, but am I meant to get Arms of Hadar and Dissonant Whispers as well? Or is it only one choice of the 3, and if so, how do I change it?

You get all three at level 1. If you want to swap these spells later, you can swap a psionic spell each time you get a level of sorcerer.

You get all three, but technically you can swap one of them at 1st level.  When you first get it.