41.   Bilateral talks are affording opportunities to chip away at nagging problems like U.S.-Japanese trade disputes and North Korean nuclear tensions.

42.   But the process leading to its removal from the space station dragged on for five hours longer than planned because of a series of nagging problems.

43.   Ferrari was the first car out for testing in early January, but nagging problems slowed progress.

44.   Graf is coming off a three-month layoff, hoping nagging back problems have abated.

45.   Guerrero got the Dallara up to speed in a hurry, helping the team solve a nagging handling problem.

46.   Instead of solving a nagging problem by firing Alexander Lebed, Boris Yeltsin soon may find he has just unleashed his greatest rival.

47.   Lithuanian President Algirdas Brazauskas ironed out some nagging problems with Russia on a recent visit, including border issues and the rights of ethnic Russians.

48.   Many more have been hobbled by pulled hamstrings and other nagging problems.

49.   Michael Jordan will miss the rest of the season because of nagging problems with his knee.

50.   Presidents Leonid Kuchma of Ukraine and Boris Yeltsin of Russia signed an economic cooperation plan Friday, and Yeltsin claimed they resolved even more nagging problems.