ShowToolPro started hidden

After compiling my project and doing some changes in the creator files (cs), ShowToolPro didn't start in visible mode (only in taskmanager visible in the list)

(use TGE 1.5)

Any idea?

I've changed editorgui.cs and editorgui.gui (preview on texture loading dialog / 8 textures in mission editor) contained in the creator folder. No other changes outside my project folder.

Greetings
Klaus