Using eB on iPad (IOS7 Safari) - name picklists...

Hello.

I know that eB isn't officially supported on iPad, but is there any reason why I would get the following behaviour when trying to select a name from a pick list? Can the iPad be configured to work differently?

In the screenshot below, when picking the offered name, a tick briefly appears, but the bubble then disappears and the name is not entered into the field on the form.

Stuart Nicholson.
HS2 Document Systems Manager.