Indexes rose sharply Monday, although they closed off their session highs. The Nasdaq, NYSE composite and S&P 500 rose 1.4% each, while the Dow added 1.3%. Volume fell across the board. Diedrich Coffee (DDRX) gapped up to a nearly 12-year high, surging 7.66, or 29%, to 33.65. Peet's Coffee & Tea (PEET) raised its offer for the maker of K-Cup single-cup servings to $32 a share. The new bid came after Green Mountain Coffee Roasters (GMCR) made a