Hi, 2010/3/15 Federico Sanchez <federicosq@xxxxxxxxx> > [...] > 1) 454_muestra2_in.fasta > 2) 454_muestra2_in.fasta.qual > 3) 454_muestra2_backbone_in.fasta > [...] > > Fatal Error (may be due to problems of the input data): > "File not found: 454_muestra2_in.454.fasta" > > That's pretty clear. rename your input files correctly :-) 454_muestra2_in.fasta -> 454_muestra2_in.454.fasta [...] cheers, Sven