Recently installed an AFCAD2 file downloaded from AVSIM for one of Gary S' uk airfields. All taxi patterns etc were ok but I found the following ATC oddities:1. After getting taxi clearance I could change to tower freq and request TO clearance straight away - even sitting at the gate.2. AI aircraft call for taxi ok and follow the correct taxi path but they taxi straight onto the runway without calling for TO clearance. They thenstop on the runway with no further movement or radio calls. Eventually all programmed AI aircraft bunch up on the runway!The AFCAD file shows the correct hold points and I have never seen this odd performance before - therefore grateful for any advice.

Are you sure the hold short nodes are red and not yellow? The yellow ones don't work, they only add an ILS hold line on the taxiway surface. All the runways have to have a red node next to all exits.Hope this helps,--Tom GibsonCal Classic Propliner Page: http://www.calclassic.comFreeflight Design Shop: http://www.freeflightdesign.comDrop by! ___x_x_(")_x_x___