Hello
Sorry for my answer but I was thinking it was clear.
I do excately like you write. I close the program first with the button in the menu. If I start again the program whithout closing the device, iGO start and then stop with the message "iGO has stopped".
I know than the program create and fill the file "history.sav" when I leave the program, I think the file is not normally close and could not be re-opened when he start again.
The program is on the SD card, the device is rooted and I use Doupas_v9.0h_default_24.
Thank you for your answer
Best regards
Dom