Summary Box: Computer glitches worsen UAL 1Q loss

TOUGH QUARTER: United Continental Holdings Inc. lost $448 million in the first quarter because of higher fuel prices, bookings hurt by a computer conversion, and the seasonal weakness of the winter travel season. A year ago, it lost $213 million.

GETTING BETTER: The company said most of the computer problems are behind it, and that the conversion will pay off in the form of higher revenue from passengers in the future.

SHARES DECLINE: The stock dropped 85 cents, or 3.7 percent, to close at $22.12.