Another Realtime Networking thread?

Howdy. I couldn't think of a better title, because put simply that's what this thread is about.

I have some kind of coded Realtime Networking in TGB. Nice and shiny, connects fine, rewrote some bits of the ghosting, etc, etc.

This is what's bugging me:

t2dVector pos = getPosition();
	t2dVector vec = getLinearVelocity();
	F32 rot = getRotation();
	F32 rotVel = getAngularVelocity();

	if(stream->writeFlag( (oldVec.isLenNotZero() && vec.isLenZero())
		|| vec.isLenNotZero() || pos != oldPos || mMap != oldMap || rot != oldRot))
	{
		stream->write(pos.mX);
		stream->write(pos.mY);
		stream->write(vec.mX);
		stream->write(vec.mY);
		stream->write(rot);
		stream->write(rotVel);
		stream->write(mMap);
	}

This is in packUpdate... but... when I unpack the data, and set it, (setRotation, setAngularVelocity, etc, etc), the movement of my object becomes VERY jumpy! Any of you TGE and TGB gurus out there care to help? =]

I believe it is something to do with the physics updating, but the new t2dPhysics object... just seems odd and confusing. =[

Thank you.

-- Ricky Taylor