>I note the Universal Navigator is compiled in a version of VFP that is not compatable with my current 5.0b.
>
>As the two appear to share the same vfp500.dll, is their a solution to this.

There is no relation with your current version. The Universal Thread Navigator uses its own DLL. See the Universal Thread Navigator page which mention a few points to respect when installing it.

Should you need more information, you may send me an email.