ToolBar some cross-platform weirdness

Hi friends!

On a my linux box, toolbar widget is separated from all other panels by static lines, like on screenshot. But on windows box the bottom line was disappeared somewhere. It this that is should be, or what? Can it be fixed and how?

lin_tb.png

win_tb.png

···

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Basil Shubin
Freelance Software Developer
http://bashu.wordpress.com