got 16GB RAM, and ETPro is still running in the background while hidden so that's not the issue.
i really think it's the GPU & CPU overheating as soon as ETPro starts rendering all my charts in hi-res. java is a great tech, but notoriously inefficient and CPU-intensive.
the fans spin up as the CPU/GPU heat up and eventually the machine freezes.
the more i think about it, the more a 5k imac seems an optimal purchase...