atc.dll ctd

HelloFirst of all, I have tried a search, but never get any results - probably something I'm doing wrong I quite freely admit.Anyhow, to get to the point. I'm a very lucky person, very, very rarely get a ctd. Can't even remember the last one. Today though, when on final into LROP using addon scenery, in LDSB763, FS9 on XP I got an atc.dll ctd. Just at the point when I think atc would normal give me the final 'clear to land' message.Is there any consensus of opinion on an atc.dll ctd? Or should I just accept it as 'one of those things'?Again, apologies if this has been discussed before and I'm too dumb to operate the search function.