21.   Those growing out of the ground may or may not signal a problem.

22.   With the Baptist Foundation, as with Enron, Andersen signed off on years of financial statements without signaling any problems.

23.   But their protests signal increasing problems for the Serbian president.

24.   The loss of radio contact could signal a problem with the on-board computer.

25.   The lost of radio contact could signal a problem with the on-board computer.

26.   The shortfall by the big brokerage could signal earnings problems for other financial services providers as a result of the economic slowdown and its impact on the financial markets.

27.   White House chief of staff Leon Panetta signalled problems earlier when a preliminary meeting ended a stalemate.