hey guys... i managed to get gpu2 running on 3 outta 4 of my cores on my 2 gtx295's. the 4th will start but then gets one of the following errors... "UNSTABLE_MACHINE" "EUE limit exceeded" "connection closed" or it will keep looping saying that "results where sent" but nothing has even been done. the other 3 gpu's are fine and the 4th is configured exactly as the other 3 are. machine IDs are set to 10, 11, 12, 13 for the cards 0 1 2 3 i have the correct -gpu 0, -gpu 1, -gpu 2, -gpu 3 flags amended and the targets point to 4 separate gpu folders. i have tried different drivers. none of the cards are OCed. fan is at 60% and temps dont go above 70c max. im running vista 64bit any help? EDIT: i can only get 2 gpu's to fold now. same problem with the other though.