I'm having a problem with compiling. Whenever I get to sorting sector band 255, TCompiler performs an illegal operation. I had this problem a long time ago and can't remember what I did to correct it. I tried searching old threads, but did not find it.Any ideas?Mike

What OS are you using?If XP trying switching it into compatibility mode...that worked for me.

Thanks for the response. I'm using win98.Another interesting thing...if i decompile and then compile without changing anything...it still won't work.love these computers...Mike

Try downloading a fresh copy of TTools...If that doesn't work...make a copy of your flight plans which you worked on....Restore the back up of the traffic.bgl file...try to decomplie it......if that works.....then replace your flight plans and try to compile once more....Hope that helps...