The keyword here is bind affinity.
1) Open up cntrl+alt+del >> got to processes
2) sideclick on the eqgame ( or maybe it says sod, not sure )
3) bind affinity is then displayed as an option for those people with multiple cores
4) choose a core for the game.
Some people get this problem, others run fine with multiple cores. Friend of mine is running quadcode and he needs not bind affinity.