[Alison C]

Is the individual author sort value correct for Hamsun? In the tag browser on the left-hand side, right-click on Hamsun and choose 'manage authors'. Verify that the sort value is what you expect.

Thanks for persevering - I do appreciate it. I've followed those steps, and yes, the author sort value is exactly as it should be. I'll have a read through the thread you've suggested, starting in the morning. Thanks again.