http://bugs.winehq.org/show_bug.cgi?id=4627
--- Comment #21 from red team redteam316@gmail.com 2009-04-26 01:56:55 --- Max, you are correct. It is possible to redock them, although still hard on some toolbars that do not include separators. I agree that the Titlebar is also wrong, but there does need to be a bar(I believe it is commonly referred to as a minibar).
I've read with many toolkits/GUI, that the Desktop Environment may have control over this, and can choose to ignore certain window hints/flags if it pleases. Is it possible that this is the case here also? I use KDE and also get the fullsize Titlebar.