Hi All, I generated some splines the other day and I noticed something that seemed odd. For some processes (but not all nu/isotope combinations) the value for the final knot was 0. That is, the x-section might be zero for the first few knots, then rise as expected, but then suddenly be zero for the final point. Anyone know why this might be? It seems a bit odd. This is relatively recent (SVN revision 3665) but I haven't tried it for absolutely the latest code. In particular I saw it for: ReinSeghalRESPXSec AivazisCharmPXSecLO QPMDISPXSec -robert Robert W. Hatcher | [log in to unmask] 630-840-3102 FNAL CD/FPE/ADS/DSG | MS 220, PO Box 500, Batavia IL 60510