The manual is short but helpful and generally well-written. I didn't notice any errors and Insignia provided a short index. I'm glad Insignia included the Errata sheet, because it explained a few things that the manual glossed over or had changed since Insignia printed the manual. Probably the best thing that I can say about the manual was that I haven't looked at it until today, over a month after I installed AccessPC. I didn't run into anything strange or unpleasant while using AccessPC that required explanation from the manual.
Compare More Easily in Apple Mail
In Apple Mail, if you need to work back and forth between two different views of Mail's mailbox contents, you can do so quite easily. For example, you might want to look at a mailbox holding all filtered-in sales orders from the past week while also looking at a smart mailbox showing unanswered customer questions.
To avoid constantly clicking between mailbox views and losing your context each time, choose File > New Viewer window to get a second window and then arrange each window as desired.