[Gretl-users] Periodogramm and spectrum are not working

Hello, I just downloaded and installed the new gretl version (1.7.8) via cvs on my ubuntu 8.04. I tried on various files to open the spectral analysis or periodogramm, but gnuplot fails to show any picture. The first error says something like this: "The picture file /.../.gretl/gretltmp.png contains no data Otherwise, the text output seems to be ok. This is the shell output: Failed command: '"gnuplot" "/home/artur/.gretl/dumbplot.gp"' GError details from gdk_pixbuf_new_from_file message: 'Bilddatei »/home/artur/.gretl/gretltmp.png« enthält keine Daten' domain = 1547, code = 0 best regards artur #adBox3 {display:none;}