Asian shares scaled seven-year highs following stellar earnings from a few U.S. hi-tech giants, but investors were cautious ahead of central bank meetings this week in the U.S. and Japan and on deadlock in creditors’ talks with Greece. MSCI’s broadest index of Asia-Pacific shares outside Japan rose 0.7 percent while Japan’s Nikkei was flat. On Friday, shares in Amazon.com Inc and Microsoft both jumped over 10 percent on strong revenues, boosting the Nasdaq Composite index to a record high.