TORONTO, Feb 20 (Reuters) - Toronto Stock Exchange S&P/TSX composite index :
* Falls 13.77 points, or 0.08 percent, to 17,911.59 at open.TORONTO, Feb 20 (Reuters) - Toronto Stock Exchange S&P/TSX composite index :
* Unofficially closes up 18.70 points, or 0.10 percent, at 17,944.06.