problem with Marker size

Hi

I'm using TMarker to produce a symbol like x and I fix its size by SetMarkerSize(1.); the problem arises when saving with Print("file.eps"): the size of the Marker is adapted to the horizontal length of the eps image. This effect is not apparent on the screen, it appears after printing. Can I have a fixed size, on both the screen and the eps? Giovanni

The code is the following.

using namespace std;
TCanvas *canapa = new TCanvas("prova","prova",0,0,200,100);

     canapa->Range(0,0,11,15);
TMarker *m1 = new TMarker(1,1,5);

            m1->SetMarkerSize(1.);
            m1->Draw();
TMarker *m1 = new TMarker(1,10,5);
            m1->SetMarkerSize(1.);
            m1->Draw();
TMarker *m1 = new TMarker(10,10,5);
            m1->SetMarkerSize(1.);
            m1->Draw();
            canapa->Print("prova.eps");


TCanvas *canapa1 = new TCanvas("prova1","prova1",0,0,400,100);
         canapa1->Range(0,0,11,15);
TMarker *m1 = new TMarker(1,1,5);
            m1->SetMarkerSize(1.);
            m1->Draw();
TMarker *m1 = new TMarker(1,10,5);
            m1->SetMarkerSize(1.);
            m1->Draw();
TMarker *m1 = new TMarker(10,10,5);
            m1->SetMarkerSize(1.);
            m1->Draw();
            canapa1->Print("prova1.eps");