Problem with GuiControl

[projectigi]

Hi,
I'm creating a GuiControl, I'm using the profile GuiWindowProfile
but when i try to set a own image

NPC Code:

---

useownprofile=true;

profile.bitmap="hex-darkwood-window5.png";

---

nothing happens to it...

oh yeah, the image is ok... I know this because it works on another GuiWindowControl(just this GuiControl makes problems)

Why I'm only using a GuiControl and not a GuiWindowControl? Because GuiControl has more of a "tooltip" style...