When “View Updates” is checked it doesn’t update the viewport in Max 2012 x64.
This works properly in Max 2013 x64.
Thanks, this is the second report about it, we will make sure it is fixed in the next build.
i’m experiencing exactly the same problem but only when I use fumefx as vector field
if I use a Pflow stream all works well
For me, in max x64, problem exist also with pflow as vector field.
We can’t seem to reproduce this problem 
When Beta 4 arrives, let us know if the problem continues.
Can you people running Max 2012 please post more info like what graphics driver you are using (Nitrous, Direct3D…), and what Product Update you are on?
We tried on two different machines with Max 2012 64 bit running Nitrous viewports and everything looked ok (I was testing with Beta 3).
There must be something that is different about your systems…
Direct3d. PU12. Win7 SP1
NVidia quadro 2000, 307.74
same here. no updates regardless of number nth frame.
max2012 x64 on Win7, Nitrous Direct3D 9.0, GeForce 9600GT.
thanks
fuat