REFILE-GLOBAL MARKETS-U.S. stocks rise on deal news, dollar up

(Refiling to correct headline to reflect that dollar up, not down) (Recasts with U.S. markets, adds byline; changes dateline; previous LONDON)

* News of deals involving CNET, Yahoo bring stock optimism

* Weak U.S. output, manufacturing reports boost bonds

* Dollar rises, oil falls after strong euro zone growth

By Herbert Lash

NEW YORK, May 15 (Reuters) - U.S. stocks rose slightly on Thursday as optimism about potential deals overshadowed weak economic data, while in Europe stocks gained on strong euro zone growth despite a warning it would be short-lived.

Oil reversed gains as a sharp sell-off in natural gas and technical issues pushing crude lower. Earlier, a stronger euro follower robust European economic growth data helped oil prices rise.

Dollar losses were capped as European Central Bank President Jean-Claude Trichet warned that euro zone growth may not be so flattering in the months ahead.

The yen rose across the board as investors reduced demand for riskier assets such as stocks after a series of weak U.S. economic data added to anxiety over the U.S. economy.