Still trying to find a clean solution to my problem.
Here's how it all started. At first all my part and assembly files had the Z axis going in the wrong direction, my boss suggested I change it so that the Z axis would go up/down as most of us would expect. So I did the "Space bar - 'Update Standard Views'" thing and got the XYZ axis to line up how I wanted (X left to right, Y front to back, Z top to bottom).
The problem was when I picked a surface (let's say the right-facing side of a cube) and hit "Normal To", it would turn the view on its side rather than match the "Right" view even though both are supposed to be the same. Yes, I could hold the Alt key and turn the view 90° with the arrow keys, but it gets old after a while and the sketch relations get screwed (SW still thinks a vertical line is vertical when it's horizontal on the screen).
May be someone has other ideas or can suggest a better way to realign the XYZ axis without messing up the "Normal To" views.