Hi, I'm not sure if this is supposed to work or not, but in light of the stress-testing of the release candidate I report the following: Gretl failed to recognize the dates in a csv file with monthly data in the format 'yyyy-mm' (from the US Fed), where the first observation is in April 1953; here's an excerpt of gretl's output: erster Zeilenkopf "1953-04", letzter Kopf "2008-12" versuche Zeilenbezeichner als Daten zu parsen... 1953: wahrscheinlich ein Jahr... Behandlung als undatierte Daten So gretl correctly finds the date labels, but then it still treats the data as undated. (Of course it's easy to fix, so at most a minor bug.) BTW, just a practical hint about a loosely related issue: quarterly data files from the US BLS often have additional lines with the annual aggregates which complicates the import -- I think we even discussed this here on this list. Now I found out that the jEdit editor has the cool feature of "cut lines containing..." so with just two clicks you can get rid of those 'annual' lines. Normally I don't like Java programs that much, but jEdit also has rectangular selection, so I like it better every time! cheers, sven