Monte-Carlo and Underlying Events Subgroup
   C. Buttar and A. Moraes
  1. Tuning with data, looking at new data that is available
  2.  Process dependence ie UE in EW, top and QCD processes
  3. Tuning with new models: PYTHIA 6.3 and SHERPA
  4. Extrapolation from current data to LHC energies
  5. Effect of UE on physics processes eg. central-jet veto in VBF Higgs channel