The start of the opening race of the 33rd America's Cup between Swiss holder Alinghi and US challenger BMW Oracle was postponed Monday due to shifting wind conditions, race officials said. The race between the hi-tech, multi-hull boats had been due to get under way shortly after 10 a.m. (0900 GMT) off Valencia. The unusual boats have finally taken to the water after more than two years of sometimes bitter legal battles between Alinghi, owned by Swiss biotechnology and banking billionaire Ernesto Bertarelli, and Oracle software mogul Larry Ellison's team. The legal battles over hosting rights and technology have resulted in multi-hull boats sailing against each other in a 3-race final for the first time in the event's 159