At present my only problem is excessive taxi lines on the ground as I move about the airport... not just 'what's supposed to be there', but there are extra 'ghost' taxi lines which are visually unpleasant and distracting.
They surely aren't coming with our scenery.
I have no idea how to do it, and would love to eliminate them if it's not too daunting a task. I use all the ORBX stuff including NorCal and SoCal, Global and Vector, and so on.
OrbX SoCal is known to cause problems to KLAS, this has been discussed on our forum on the thread just below this one:http://www.fsdreamteam.com/forum/index.php/topic,13085.0.html
The link on OrbX forum has solution from their side to fix compatibility problems with KLAS, but I cannot say if it fixes your issues.
If Virtuali could enumerate the proper AFCAD files for your version of KLAS, I can use ADE editor to search for duplicate AFCADS which possibly is causing the ghost taxi lines (?)
The proper AFCAD for KLAS is the one we supply with the scenery, located in the fsdreamteam\KLAS\scenery folder so, if you find any other file that might be related to KLAS *outside* that folder, you can assume is a potentially conflicting file that should be removed.