int try() {
  
  TCanvas *c2 = new TCanvas("c2","c2");
  c2->Draw();

  c2->Divide(2,2);

  TFile *thisfile = new TFile("ROOTfiles/ntuple_ana.root","READ");

  TCanvas *canv = (TCanvas*)thisfile->Get("Effi_BIL_2A05");
  c2->cd(1);
  canv->DrawClonePad();
  c2->Update();

  delete canv; // this seems to cure the Error and Crash but still
	       // nothing is drawn.


  return 0;

}