I've used various FSX default effects in missions and attached to aircraft via the 'Smoke' function - normally without problems - until this week, that is. One of the missions I'm developing has a small bonfire and I use the fx.forestfiresmall.fx effect. When I ran that mission, yesterday, I saw this:
The dark grey squares, which are supposed to represent smoke, are missing the 'smoke' texture and, therefore, appear as, well, squares! Something had corrupted the associated texture. Could have been an add-on - but which one, eh?
Would I have to re-install FSX (Aargh!!) or was there another