I think this question is impossible to give a definitive answer to. In fact, you are the only one who could give us the actual answer. If you never got tot the root of what was causing the instability, it's doubtful any of us could possibly know the cause and thus the probability that X2 addresses that particular thing. With that said, I find X2 more stable on my pc than 8.3 was, but I am on a completely different computer than what I ran 8.3 on.