Geopak V8i and Project Manager

We've run into a situation with V8i Geopak. If we create a new project using Project Manager we can not open the newly created GPK file with Project Manager. We can open it with COGO. If we created a new GPK with COGO we still can not open it with Project Manager. We can however open a GPK file that was created using Geopak V8 2004. Has anyone else run into this?