Thank you very much. The solution is great and simple. Now I know :-) Thanks a million!

But I got the following warning when I close the app store product page. [u ED8C53D0-7EC8-4C6F-852A-1DA0728F514E:m AD5A9F66-D190-4C13-BF86-1991EFC3CFEB] [com.apple.AppStore.ProductPageExtension(1.0)] Connection to plugin invalidated while in use. Any idea how to get rid of the message? I have been googling for a few hours without success.