747 OOM Issues Not gone with 748

So I depart, panel works fine. After a while, the entire panel stops working. Speed tape/directions, everything locks up. Only way I can fix it is by a restart of FSX -- and then it just does it again after a few minutes.I have done every possible fix -- including those on simforums for OOM with Vista 32 bit. I cannot get it fixed.Is there a magic fix I am missing? I only get this with the 747-400X, 747-8I. The MD-11 works fine, as well as other airplanes like the LDS767.