it's working fine here. your game copy is probably damaged, try going to tmp/ULUS10576/ and delete eboot.bin, if that doesn't help re-rip the game maybe.
if that doesn't help then dunno, maybe it's the 64 bit version's fault. i use 32 bit one. i have a similar gpu, except mine's a gts 450, and while my cpu's an amd x2, i don't think that'd cause a problem.
if that doesn't help then dunno, maybe it's the 64 bit version's fault. i use 32 bit one. i have a similar gpu, except mine's a gts 450, and while my cpu's an amd x2, i don't think that'd cause a problem.