Greg,
I think your right. We did get off topic. Your original post was about conforming vectors and somehow was hijacked to centerline text. They are two separate but similar functions with different applications. Sorry about that.
In Aspire, "conforming vectors" can be accomplished by putting a check in the box for "Project toolpath onto 3D model" in the toolpath setup and the results are clearly shown in the preview. Correctly applied Conforming Vectors should be clearly shown in the Designer also. I'm not sure why the preview in the Designer isn't correct on your computer. Maybe it has something to do with the graphics card and the hardware acceleration setting on the preferences menu.