Hi,I am running rcv4 on a (german) vista system. Flying with a default plane on fsx I get the message: Runtime Error "75" RadarContact.fsuipc.rc4code after a while. I have checked the .flt/.wx path and made sure that I have administrator rights because I have switched off the user rights.I tried the same flight with the debugging option. After a while I get the message: runtime error "52" filename or -number wrong. At least I have the log file.What am I doing wrong? Is there some setting I have to make in addition to the path of the .flt/.wx files and running the system with administrator rights?I appreciate any help because I think rcv4 ist a great program and I would really like to use it.RegardsReinhard

turning off uac doesn't make you have admin rightsright mouse click the shortcut or the .exe, click run as administratorif it still fails, create a new log, and send it to mejd