Why can't I get my mail to display in pages, like it did before?

I don't have an answer, but I have the same question/complaint/concern.

No notice, no reason, and now I also can not retrieve a specific file by sender or subject, it no longer goes to that choice, it starts from the beginning of all subjects, senders. No clear way to get an answer from Yahoo either, I really need to change email providers.

I'm in exactly the same position. Since 6th June(out of the blue!) I haven't been able to display my e-mails on separate pages or sort by sender etc. And now today I can only access the first 30 or so, and not the rest. How do we get an answer from Yahoo?

Sorry, I also have similar problem. I used to sort my mail newest last so that I could follow the continuity of a theme. Now it takes for ever to reach current mails and the newest are not there with this sort. Does yahoo read these?