[2.22] Bug with fullscreen

[DenTNT]

XnView v2.22 (Apr 7 2014)
Libformat 6.56
When open image file from windows explorer, it opens in fullscreen.
But it opens with grey (white) frame.
If i press F11 (toggle fullscreen mode), then I press it again, the frame disappears.
Bugged screenshot:

[xnview]

on which windows?

[DenTNT]

Windows 8 x64.
On Windows 7 x64 all is fine.

[xnview]

which mode in Option>General>Mode when starting file?

[DenTNT]

Fullscreen -> Edit

[xnview]

i can't confirm, i have no frame under win 8.1

[DenTNT]

i can't confirm, i have no frame under win 8.1

I said Windows 8. No SP.