Posting in the Magento forums has been disabled pending the implementation of a new and improved forum solution which should better serve the community.
For new questions please post at magento.stackexchange.com, the community-run support site for the Magento community. We will be providing updates on the new forum solution soon. For questions or concerns please email firstname.lastname@example.org.
In “Manage Products Admin” when I want to go to the second or an other page (in order to see more products) or if I want to change the number of view per page : I see a second admin menu, the page is out of order, and “Please Wait” is running (you can see it in my Attachment)