Centerline vertical geometry not displaying in 3D

I'm using Power Geopak V8i SS10. Very new user.

I have my centerline horizontal and vertical created and both have been exported to the gpk. My geometry file is referenced into my model file. When in my model dwg, if I switch to 3D space, the centerline does not show up. Also when selecting my centerline, it does not give me the option to open profile view. Any ideas?

All help is appreciated, thank you!