Nice to hear, it's working now - and yes, if you're new to Vista 64bit, you might not notice right away, there are two "Program" folders, 32bit and 64bit ... I've noticed this fact earlier, while adding certain other programs, before i even got to the re-installation of Vue 6.

The jerky gizmo, hopefully, will be fixed in future patches ... until then, i can live with it. Since the render/prerender times are much faster now, i can spend more time on the gizmo positioning  ;)  ...