Prime Minister Ariel Sharon and Palestinian leader Mahmoud Abbas held their first summit in four months but failed to make progress. The atmosphere was tense at the meeting, which took place at Sharon’s residence here in Jerusalem. “We are still taking casualties,” Sharon said, referring to a wave of Islamic Jihad attacks that left two Israelis dead this week. Sharon warned Abbas to quit complaining that he’s weak, saying the Palestinian people would eventually accept that as reality. Sharon said that Abbas had promised to rein in terrorists but had done nothing. "As long as the Palestinian Authority does not take the real steps necessary to stop terrorism and to dismantle the terrorist organizations, there's no way we can move forward towards the 'roadmap' to peace," said Sharon’s spokesman Ra’anan Gissin.