My program begins initializing, and then it suddenly quits, and dissappears without showing an error message. I looked at various forums that suggest deleting or changing the adskflex_00691b00_tsf.data file in the ProgramData\FlexNet folder, but it doesn't work for me. It keeps doing the same thing. I'm using an educational version of Autodesk Infrastructure Design Suite 2013, installed on a Dell Notebook with Windows 7 Home Premium. I will appreciate any suggestions.