(I used to be annoyed by the Petronella clap, but given that I now rarely hear the whole hall hit a balance at the same time, I'm happy to hear everybody in the room synched precisely up on *something*, ...) -- Alan Did anyone else snort with laughter at this? Is it a math deficiency? Are people too busy using their smartphones? Is it anarchy? Whatever it is, thanks Alan - you gave me a good chuckle. Chrissy Fowler Belfast ME