Originally Posted by vexcor
We have similiar problem, after update from 3.0.3 backend interface doesnt work. We see only first login page. After login we see blank layout page without tabs as you can see in attachment. Before update everything worked without problem. We tried manual update too and problem still. Logs are ok without errors
We tried other browsers (IE 8 and 9, Safari, Opera, Firefox) and same problem.
Do you use a custom theme? Ispconfig uses now jquery instead of yui, so all custom themes have to be changed to work with the new ispconfig version.