Microsoft has its trials: The Justice Dept. is blocking its proposed $2 billion merger with Intuit. On May 15, Executive Vice-President Mike Maples announced he would retire. But cry not for Bill Gates: Microsoft's shares are up 40% in three months. Its legal hassles have been overshadowed by hopes for Windows 95, the new operating system due to debut in August. And on May 16, Microsoft signed a vague but promising deal with NBC to create programming for interactive TV.