Hi, Using wnl 6.2 NCA, what does modeling error 1 mean?
Mario - normally there is more information in the Core output - at first guess without your file I would guess some sort of mis-match between dosing and main worksheet sorts. or perhaps an inappropriate input format like comma as a decimal separator or perhaps using clock-times rather than actual time elapsed. Simon. PS just seen this is also in the support queue as case 135265.