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[news.eclipse.platform.swt] scroll speed

Hi!

I've an Swt application which uses a scrolled-composite. Inside the 
composite, many images are displayed (you need about 10 screens to visualize 
all of them). The scrolls works ok: I move the scroll, and more images are 
shown. However I have a problem with the speed of the scroll. What I do mean 
is that, for example, when I press on the white part of the scroll, (not the 
blue part to select what are you seeing), the movement that the scroll does 
is very small.
Let me put an example, in a usuall window with scroll, when you press in the 
white part of the scroll you expect something like a "nextPage" thing, you 
want to see the next part of the page. However, when I press in this white 
part my composite only moves about 5 pixels.
The same happends when I press the arrows of the scroll. If I press the 
bottm arrow, it will take for about 5 minutes to arrive to the end.

Anyone knows how to change this speed? Is this speed calculated by something 
that I'm missing?

Thanks!