Hi, this is with yesterday's snapshot, but it's probably a little older than that. I think it's pretty severe, because it distorts data and is not always obvious. To start with, run this code (in the GUI): <hansl> open denmark smpl 1979:1 1985:4 # subsample series dm = 400 * ldiff(LRM) smpl --full series xsd = normal() series x = 0 smpl 1975:1 1985:4 plot dm options time-series option band=x,xsd,1.96 option band-style=fill,dark-grey printf "set xrange [1975:1985]" end plot --output=display </hansl> Then, edit the plot (right-click, edit). Increase the font size, click "OK", then "Apply". What happens for me is that the data series (in this case the points on the one hand and the filled bands OTOH) become mismatched, at least one of them is shifted horizontally. It seems --though I'm not sure-- that the missing values in one of the series are crucial to get this wrong behavior. thanks, sven