Remember that Vista 64 is unable to use the VR functions within ArchiCad. Apparently Apple (the inventors of VR) haven't yet written the drivers to make it work with 64 bit window OS's. And Graphisoft obviously don't have, or don't use, enough clout to make them do so.
Cornelis (Kees) Wegman
cornelis wegman architects
AC 5 - 26 Dell XPS 8940 Win 10 16GB 1TB SSD 2TB HD RTX 3070 GPU
Laptop: AC 24 - 26 Win 10 16GB 1TB SSD RTX 3070 GPU