I play using the Japanese buttons layout so it was a annoyance for me that it actually worked properly (I had to invert the buttons manually) but the changes actually stickied properly.
That's how I use my controller:
Y=HUD
X=Menu
B=Confirm
A=Cancel
The USA XBOX 360 has the buttons set this way:
Y=HUD
X=Menu
B=Cancel
A=Confirm