Help with DataWindow.Print.CustomPage.Length

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C#

Visual-Studio

PowerBuilder

Hello Everyone,

I was set tha paper-size of a reporte (datawindow) in my powerbuilder aplication.

I wrote the following code in powerbuilder:

dw_impresion.Object.DataWindow.Print.preview=true
dw_impresion.Object.DataWindow.Print.Paper.Size=256   
//HERE APLICATION FAILED:
dw_impresion.Object.DataWindow.Print.CustomPage.Length = 334 //THIS LINE dw_impresion.Object.DataWindow.Print.CustomPage.Width = 191

In windows xp this run correctly

But in windows 2000 server the aplication show the following error:

"Error accessing External object property length"

The image of the error is:

<img src='http://img811.imageshack.us/img811/1484/errordevistapreliminard.png' border='0'/>

There is a way to eliminate the error?

Someone would can help me???