I've just replaced my last GF4 TI4600 with another 9700Pro (while I could still get my tradein on the GF4!!!), as I have had so few problems that, to me, there is no reason to keep the 4600 any more (was in wifes machine....and she hated it after seeing the 9700!) While I too check out R3D everyday, and have seen those same people complaining, I've not had a single stutter problem. In fact, I've seen people comlplaining about stuttering problem on the GF4's in many forums also..... Now, I don't think either card has a problem per say. Some of it is equipment specific, and some of it is human error......