I have a fullscreen panel with "standard" icons on the top of this panel, and I have also another panel (smaller than first panel), set to invisible, with "advanced" icons, over the standard icon. In the first panel (where standard icons are in) there is a button to display advanced icons, which sets the second panel to visible and brings to front it. Similarly, in the second panel there is a button to display standard icons, which sets to invisible and sends to back it.
The problem is that when I click on button to display the second panel, the rest of the first panel turns all black. This happens only the first time. If I repeat this operation it does not happen. How can I resolve this?
The problem is that when I click on button to display the second panel, the rest of the first panel turns all black. This happens only the first time. If I repeat this operation it does not happen. How can I resolve this?