[mrtg] Question?

[manuel abad]

I would like to graph only one variable with MRTG.
I've tried to give him the same variable and the result is not very good.
I've also trie to give him one witch is all the time at "0" and the result
is not the same if I change Transmition/Reception!
Anybody know why? My configuration is the same for both variable except for
the scale.
In one case I only have bars and I did'nt shoose the option.
thanks for your help.