That's a known bug from the beta. The game can exhaust all of the available ram and then be unable to release any, and then it hangs. Supposedly this is improved slightly in the multiplayer that's updated, but we would have to wait until they release another single player patch.
Ok I have the 188.8.131.5215 version of the game and trainer and it doesn't work. I started a new character and leveled him up. I can increase the level by one and killing something for it to increase, but as for health, mana, palladium, skill points, and everything else, they don't work.
I have the CE version of the game running windows xp sp2.