Hi,This XEngine Message Box pops up after importing a flight plan during the weather briefing. It remains permanently before starting FSX and after exiting FSX. It doesn't seem to bother anything, but what is it's purpose? Thanks.Edit: IF you wait long enough, it completes the smoothing. I'm just too impatient to get flying. However, if it reduces the chance my plane will get tossed out of the air at FL390, then I'll wait. :)Bob..

Hi Bob,How long is it taking for the message to go away? It shouldn't be longer than a few minutes...

From my experience, it takes between 2 and 10 minutes. Depending on the flightplan. But well worth it.Esteban