...as freeware (the program and all 3 libraries) from another place and I installed it all as stated, but when I use it in FS2004...screen blackens, warning box pops up that says "Invalid License", so I click out. Last time I had it was 2008 and "Opa" Marshall himself (RIP) walked me though installation. It worked fine then...not now.
Has anyone else run into this? What does it mean? What should I do? Thanks!