>Renato,
>
>Have you checked the scalemode of the graph, is it set to automatic?
>If it is set to manual I have seen this.
>

I think it's set to automatic, because I don't set this property, and the biggest column it's the reference for others (it's always high like the chart)

the problem occurs on the same chart on different PCs and chart property are set but application and user cannot change these