Thanks James, but I am really using 1.1.41 and 1.1.42 versions. Can be problem 64bit debian? I was using 32bits ubuntu. On other 32bit ubuntu, I can start it correctly. Do you want me to paste whole big winedbg? There were many "pass"-es. I only showed one when it happened + it's predecessor. Program is called TurAtlasCR.exe. No way you can know about it :-( It's a offline map viewer.