Hi there,I used the paid service of High Flight Simulation and I have to say everything is smooth as silk (of course I have to give up to some nice graphics).The problem I have know is that sometimes when I start FS it is smooth but sometimes I have 1 FPS....so unflyable at all.....2 days ago FS was smooth and yesterday I wanted to start a new flight and I had 1 FPS only......I don't understand why that......I didn't change anything in FSX.CFG or in my setup