My wife would like her iPad to sound an alert for new e-mail when it is locked. At present she has to open it up and access the Mail program before she gets an alert, by which time she can see there are new messages anyway! We have looked at all the various options and cannot see anything that would make this work, she knows it is possible because she has 2 friends whose iPads do alert even when locked. Any ideas please? It is definitely NOT in Sleep mode.