11.   A longstanding Windows design flaw makes that sort of thing commonplace.

12.   A spokesman for the airport managers declined to answer questions about this apparent design flaw.

13.   But there were plenty of negatives over the weekend from the drivers, who believe the track is dangerous and has design flaws.

14.   But the panel also warned that even scooters without design flaws can be dangerous.

15.   But they said at federal hearings here that even if they had initially misdiagnosed some early incidents, they still believed that their planes had no design flaw.

16.   But they said that even if they had initially misdiagnosed some early incidents, they still believed that their planes had no design flaw.

17.   Dan Rothman, vice president and general manager of Atek Electronics, contends that a design flaw is to blame.

18.   Despite decades of research, few theories have emerged to explain why natural selection would tolerate such a critical design flaw.

19.   Design flaws were spotted and fixed.

20.   Due to a design flaw, however, Warburton needs an hour to use the bathroom.