Well, like I said, from what I know those are still in beta. And, it seems that anything higher than the 1.03 driver set will have some sort of problem with FF7, at least it does on my V3.
So, just for the heck of it, try using the corresponding driver set for the V5, it might work then.
And, is it just me, or is it totally ironic that the Geforce is running it fine and the V5 is having problems?