No, something is way wrong with either your install or your comprehension of the navball. I'm leaning towards the latter because that would be a weirdly specific bug.
Clearly I'm comprehending something wrong, but try this out and see what you think:
Go into the VAB and select a MkI Command Pod. Move it out to the launch pad with nothing under it, so it just sits there.
Notice that your view is looking north, with the flagpole just to the left of center, and the ocean off to the right.
Notice how pressing D tips the pod to the right, to the east. right along the 90 line of the navball.
Notice how the Navball has a bright orange line labled N which points towards you. Notice how the 90 line is to the right of the N line. this is WEST on the navball. Relative to the line labled N, the 90 mark is due West.
if that orange line was pointing UP (like on a traditional compass) east would be right and West would be left and South would be down. But since the N line is pointing DOWN, East is to the LEFT.
But clearly, pressing D tips you towards the ocean, towards the East. Which is inverted from what the navball says.
Now, go back to the VAB and take the command pod and rotate it 180 degrees so that is facing the other way by picking it up and pressing Q twice. Take the reoriented pod back to the pad.
Now the orange line conveniently points up, which is aligned with your view looking north. Pressing D tips you to the 270 line, which is clearly East on the ball. However, your nose tips to the Left of the screen, away from the water, which is West.
Now that you know what I'm looking at, please tell me how I'm doing it wrong.