Sorry to hear that. The Logout Button is a known issue (http://social.msdn.microsoft.com/Forums/en-US/ed998c20-4802-4074-9110-0800d958edf5/log-out-button-disappears-when-navigating-back-to-homescreen-html-march-update?forum=lightswitch) that we are looking
into.
When you say their are issues with the grid? I assume you are talking about the Table control in the HTML Client and not the DataGrid in the Silverlight Client?
Can you provide some additional information about what types of data and controls you have in the table?
Thanks.
Patrick Baker (Visual Studio LightSwitch Test Lead)