No Alignment In The Output Of Blastn

Hello everybody, I am trying to BLAST a nucleotide query against a nucleotide database via command line.

The problem is that, when I try blastall -p blastn -d mydatabase -i myquery I get just:

BLASTN 2.2.25 [Feb-01-2011]


Reference: Altschul, Stephen F., Thomas L. Madden, Alejandro A. Schaffer,
Jinghui Zhang, Zheng Zhang, Webb Miller, and David J. Lipman (1997),
"Gapped BLAST and PSI-BLAST: a new generation of protein database search
programs",  Nucleic Acids Res. 25:3389-3402.

Query= myquery
         (52 letters)

Nothing else is displayed, even when trying to make positive control experiments. What is wrong?

Thanks in advance.