Gentlmen,Although I had been able to meet the Aurora in the Arctic Circle of the flight EDDF - RJNN (RJNL now) on the FS2004 until a few years ago, I cannot see the Aurora on the FSX now. There are fx_Aurora1,2,3.fx and fx_aurola.bmp files in the Effects folder of the FSX as same as the FS2004. Where is the .bgl file which describes the conditions to display the Aurora? Sincerely,Kan-ichiro Fushihara