phantom line error

[roberto]

hello everyone,
i'm running an octave script and today i got the following strange error:
######
octave-2.1.69:52> E_X
parse error near line 58 of file
/home/roberto/NETs/temix/routing-temix/giacomo/packetostatic/MATLAB/Octave/E_X.m

syntax error
#######

i know nothing seems to be wrong but my file E_X is only 56 line long!! 
I'm currently using gvim editor version 6.3; i also made a check via
an onther editor like kwrite but the same results happen.
No line 58, the script end on line 56 : (

thank you for any help

-- 
roberto
debian sarge, kernel 2.6.8



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