Thanks John (Neuro), but I do have my custom screen set to multi-controller AF point selection, that's not the issue.
With the 1DX, what is happening is that the VF screen, which also shows the AF points goes to sleep after about 8 seconds. Keep in mind that you can still see where the AF point is in the VF, even when it's asleep. However, that AF point is actually "not active" and will not move until you wake it up with a Half-Press of the shutter button.
With the MKIV, I used to be able to wake up the VF and AF point by pressing the multi-controller, so since my thumb was now already on the multi-controller, I could just move the Multi-controller which moves the AF point in one swift motion, but now on the 1DX I have to first do a half-press of the shutter button to wake up the VF and AF point, and then after that I can choose my AF point with the mutli-controller since they are now awake.
So, it's an extra step, and it's going against my instincts, which I used to do quickly without thinking.
I was also wondering if some people feel that the AF point is not responding, because even though you can see the AF point in the VF, it is asleep until the half-shutter press, but like others, mine was also sticking a bit and now it seems to be loosening up a little.