"When I click the icon in toolbar panel,there is no interface, then I click once more,it said "Other program is already running",why?"
1.If you are in the desktop,some subroutine module which use a pop up windows to display will be hidden behind the main interface. you need to right click to choose Minimize window,press Alt+9 or press Alt+Tab in order to switch window.
2.If you think it is unconvenient,please switch it to undesktop in System setting,then it will work like a embedded system.
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