31.   But my e-mail inbox is crammed with letters from users who have had trouble getting even the best firewall programs to work.

32.   But she said crash-course teaching programs can work, if enough support is provided.

33.   But the program has also worked as a hedge against bad business-news cycles.

34.   But the survey responses also suggested that even the consumers who are most familiar with the Web do not completely understand how the seal programs work.

35.   But there is no track record in Texas on whether such a program will work.

36.   But there is not much data on whether these programs are working.

37.   But they do, and the donor program has been working steadily in the past several years to register more minority potential donors.

38.   But the programs work so stealthily they spook even the most cyber-savvy and have raised numerous legal and ethical questions.

39.   Carrasco shows that such programs can work.

40.   Champion backstroker Lenny Krayzelburg says the Pfizer program works for him.