WASHINGTON (Reuters) - International observers predicted problems in the U.S. presidential election with new voting machines and warned the result could again be delayed, four years after a disputed count determined who won the White House. The Organization for Security and Cooperation (news - web sites) in Europe observers issued a report this week on preparations for the Nov. 2 vote, after a visit earlier this month. The group highlighted concerns over the machines, voter eligibility rules and allegations of intimidation aimed at lowering the turnout of ethnic minorities. "In general, the nationwide replacement of voting equipment, inspired by the...