Path of Radiance problem

[khs1]

Basically this game runs perfectly until you try to load a save in a later chapter. It first happens on 11 where if you save in battle and try to load it, the game will give you a black screen and hangs. Also in later chapters, if you try to go to outfit or award bonus xp menu after loading a save, you'd either get the black screen or just hang with music playing. It also freezes if there's a conversation scene before a battle.

I tried most of the newer revision and the oldest one I can find: r1012 and they all have this problem.