Hi jd and all RC users,I have used RC 4.2 for some time now with no problems.About a month ago having completed a flight ,when I came to close down RC,FS9,Active Sky 6.5 and Traffic 2005,for each oneI received a warning that the exe files had problems.I uninstalled all progs associated with FS9 as well as RC.I then reformatted my disc,ran virus checks ,spyware checks ,all of which showed no problems.I then reloaded all FS( and selected add onstogether with RC4.2.RC did its updates and ran makerways torebuild scenery base with no probs.I then set about trying a flightand when I came to run RC4.2 I get runtime error 62 callsigns.This has now happened on six occasions.My set up is Windows XP sp2,FS9.Active Sky 6.5,Traffic 2005,RC4.2with Heathrow pro installed and FSUIPC 3.75.I am trying a flight from EGPF to EGKK using default scenery at EGPF.Can anyone throw any light and suggestions my way to help me rectify my problem.Sorry for the long post as I have tried to give the fullest explanation of my problemsRegardsNorman Bowman

sounds like the c4.csv file is messed up. did you edit it with excel and save it?replace yours with this onejd

Hi jd,Thanks for the quick reply.I will not be able to test the new file until Monday evening 1900z however I will post another reply with the result tomorrow.I have not touched any of the files associated with any of the FS progs which I use(it scares me)to do so.ThanksNorman Bowman

Hi jd,As promised,I have tested my flight sim together with all my usual addons as well as RC and can report that all of the problems have cleared up.I have flown two test flights with a full fs start up on each occasion with no problems.Thank you again for the prompt reply and solution for my problem.Kind regardsNorman Bowman