61.   Similar problems have developed with a shipment of fuel, intended for use by aid groups, that is due to arrive this week.

62.   So far, NATO officials are silent about what they would do if problems develop.

63.   Some refineries are scheduled to resume production later this month, although operational problems could develop during start-ups.

64.   Sometimes, in newer homes, problems develop because the structures are so tight that replacement air cannot enter.

65.   Some refineries are scheduled to resume production later this month, although operational problems can develop during a start-up, adding further delays.

66.   That could mean forceful action inside countries where problems are developing, a policy Secretary-General Kofi Annan has endorsed as a last resort.

67.   The board also said he failed to exercise his cockpit authority when the problems developed.

68.   The exchange upgraded its computer system today to double the number of options orders it could handle, and an unspecified problem developed, Nazerian said.

69.   The exchange was upgrading its computer system to double the number of orders it could handle, and an unspecified problem developed, she said.

70.   The engineering staff finally is getting comfortable with the new systems that, for the first time, identify potential troublespots in the network before problems develop.