$WS_POPUPWINDOW covers taskbar

Hello,

I'm using this

GUICreate("Form1", 977, 586, -1, -1, $WS_POPUPWINDOW)

The problem is that the gui covers the taskbar.
Is there a way to use $WS_POPUPWINDOW (i.e. create a gui without borders and titlebar) without covering taskbar?

Thank you