As a newcomer, Ambassador Ralph Leo "Skip" Boyce is justifiably nervous. From his office, he says, he can hear the screams of anti-US demonstrators along Jalan Medan Merdeka Selatan. Boyce, who arrived in Indonesia just a few days ago, admits he's a little edgy each time he turns up at the office. The fact that his car must zig-zag past makeshift barbed-wire fences surrounding the US Embassy is no welcoming sight before work. "It's like entering a for