Actors wont move Options

[colinrgodsey]

I'm using PhysX 2.8.1 API under Linux. My scene initializes and I get all the objects I would expect. I have a loop that retrieves actor positions at any point, but none of my actors seem to move. With just a plane and a box floating above it, nothing seems to move. I have set gravity in the sceneDesc and the actors starts with a velocity. Here is the code I use every frame to update and get coords:

int nbActors = pScene->getNbActors();
NxActor** actors = pScene->getActors();
while(nbActors--)
{
NxActor* actor = *actors++;
if(!actor->userData) continue;

Entity *e = (Entity *)actor->userData;
if(e && !e->props) e = e->parent;
if(e && !e->props) e = e->parent;
if(!e || !e->props) continue;

nProperties::OriginProperty *prop =
(nProperties::OriginProperty *)e->props->GetProp(PropertyManager::ORIGIN);
if(prop) {
cmMatrix m;
//actor->getGlobalPose().getColumnMajor44(m.mbuf);

NxVec3 nxo = actor->getGlobalPose().t;
prop->orig = Vec3(VEC3_3f(nxo));
t2printf("Orig update %s: %f %f %f\n", e->id, VEC3_3f(prop->orig));
}
}

pScene->simulate(oTimer.renderTimer.totaltime / 1000.0f);
pScene->flushStream();
pScene->fetchResults(NX_RIGID_BODY_FINISHED, true);

i get the position reported back properly in the actor loop, but it never changes...