Yes, i know i din't give any specific information about my code because i believe it is not about my code...
Because it happens even i don't put any letter on IDE screen.
Just after adding an image in the visual form editor, my programs works but i can not re-open form screen to edit my form with visual editor, after closing once. And b4ppc throws an error just like in the screenshot included in the zip file...
I am using windows 7 64Bit OS
.NET Framework is installed
Thank you for your help.