how not repeat the path directory

hi men (and women) i have octave 3.2.0 with windows vista, and i have a very annoying problem....
in every line octave repeat the path directory and i must write the command in a new line...
i copy an example with diary to explain the problem

octave-3.2.0.exe:15:c:\octave
> x=2
x =  2
octave-3.2.0.exe:16:c:\octave
> y=3
y =  3
octave-3.2.0.exe:17:c:\octave
> c=x-y
c = -1
octave-3.2.0.exe:18:c:\octave
> diary off


this is very annoying...how can i write all in a line to see better what i wrote? i want something like this:

octave-3.2.0.exe:15:c:\octave> x=2
x =  2
octave-3.2.0.exe:16:c:\octave> y=3
y =  3
octave-3.2.0.exe:17:c:\octave> c=x-y
c = -1
octave-3.2.0.exe:18:c:\octave> diary off

so it will be easier to read the commands i wrote....

thanks very much