Back from the dead. Discovered this today.
Does the full version run better than the demo? I have managed to make the computer chug enough that the altimeter displayed random numbers and the stage indicator also did random numbers Its what happens when you have like 40 solid boosters lit at once and have a couple hundred ridged struts in the design to make the rocket not rip itself to pieces. But I did record 8.6g with that rocket during liftoff.