Palestinian President Mahmoud Abbas says talks with Israel are in trouble ahead of the U.S.-sponsored Mideast peace conference.
Both sides still disagree on a statement for release ahead of this week's summit in Washington and Annapolis, Maryland.
Palestinians want specific issues addressed, such as the final borders between Israel and a future Palestinian state. Israel wants much vaguer language.
Both sides have said they hope to reach a peace agreement before President Bush leaves office in January 2009. Abbas promises to make "all efforts" to reach a deal.
Talks broke down in violence seven years ago.