Walls will not align in X2

[tchomes]

I must have messed with a setting... I'm using X2 and for some reason, for the past couple of months, when I go to move a wall, it will not snap to be in line with an adjacent wall. Especially aggrevating when drawing in interior walls to be perpendicular to exterior walls. I have to use the dimension tool to get them to line up. I use to not have to do this, so can someone tell me what preference, check box that I may have unchecked. I have turned grid snapping on/off...didn't help. I have also turned snap to object on and off...didn't help.

I would really appreciate it as it is driving me insane and taking lots more time to move things around when they don't line up.

Thank you,