PS 11 Extended: documents open maximized

I've just installed and updated PS 11 extended and I've noticed the following change. When I open or create a document it always opens maximized. I hate working like that, I only ever work in floating windows, so every single time I open or create a document I first have to tell it to float.

Please, can someone tell me how to change this behaviour, so that when I open or create a document it starts out in a floating window? I've only been working in PS 11 for about 6 hours and already this very small issue is driving me crazy.

Thanks,
Mark

Edit > Preferences > Interface > uncheck "Open Documents as Tabs".

Wolf, you absolute star, thank you. Have a flamingo :)