Hi, this just happened on another system for me.
I figured out a workaround: Right-click on the navigation bar, then “Configure Toolb̲ars…” then hit the 「D̲efaults」 button. Unfortunately, after I press ^T to get a new tab, the menu bar is gone again, reproducibly, and independent on which tab is selected, until I do the dance again. Heck, even if I switch tabs. This is kinda… a showstopper? bye, //mirabilos -- tarent solutions GmbH Rochusstraße 2-4, D-53123 Bonn • http://www.tarent.de/ Tel: +49 228 54881-393 • Fax: +49 228 54881-235 HRB 5168 (AG Bonn) • USt-ID (VAT): DE122264941 Geschäftsführer: Dr. Stefan Barth, Kai Ebenrett, Boris Esser, Alexander Steeg