Thank you for the replies and suggestions. This is a FSX install. I'm using VoxATC 6.51 this is my first time using this program. I have uninstalled and re installed. The indexer works like it should. I'm using the basic C172 for my initial test, which with this issue is going no where fast. I've used many different aircraft, same result. The window flashes for half a second and is gone. Ugh. I refuse to re install FSX, with all my add-ons, would take me all day. I plan on getting into P3D soon. Maybe it will work for me with that program. If anyone has any other ideas, they are most welcome to share!