you would'nt be geoff crammond would you?
the only easy way of playing htis way is to both install a clean version of gp3 and the same version of gpxpatch,
the games have to be identical in order for it to play properly
or simply copy your gp3 folder and transfer it on to his system, that way they'll be identical
LS's Tip of the weekESSENTIAL OILS aren't essential unless you're an engine, a gearbox or a twat