Wash the bell peppers,snip off stems and discard,simmer in water in covered pan for 5 mins.Drain,peel,cut open,discard seeds and veins, cut into strips. Combine peppers,chiles,onion and cream and blend until smooth, using some of the stock if more liquid is needed to blend. Melt the butter. Blend in the flour.Stirring constantly,gradually add the bell pepper-chile mixture and the rest of the beef stock.Add salt/pepper to taste. Stir until soup is thickened and smooth. Remove from the stove and serve hot with generous dabs of the cream cheese.