Hello Everyone, I was doing some shaded plots and it keeps giving me: Logic error 8 in gxshad Error in gxshad with the shading drawn wrong by itself. The command I used to draw the shades (for SST) are very simple: 'set gxout shaded' 'set clevs 6 8 10 26 28 30' 'set ccols 18 19 20 0 21 22 23' 'd sst' Thanks Steven Chan