Hi,
after a little shock, I found out, that my emails are still there, but RC have a problem, to show them. If I go into this folder (it's not the inbox), there are no emails anymore. Newscounter still shows the number of the last folder, I was in. Now, if I go into a folder having more mails, then I have set as show per page (in my case 30) and go now back, the first side is still empty, but if I click for the next 30 mails, they show up again... Now I can see my no. 31 - 529. This counter is refreshes by clicking next... but going back to 1-30 didn't make much more, than showing me an empty page... without counter refresh...