"I did install Ultimate Traffic ages ago,"Ah, no kidding! It's nice to have sufficient informaion when trying to solves others problems.
By renaming your backup you've effectively disabled Ultimate Traffic (did I say waste money?).
All one has to do is run Compile in UT and indicate whether or not they want to use Default FS9 traffic. That's it. UT does the rest.
Also, by discussing FS2k2 and FS9 in the same thread only compounds the confusion:
traffic.bgl in FS2k2 is not the same as
traffic.bgl in FS9Oh well . . . if you're ahppy I'm happy.
References cited:
http://ultimatetraffic.flight1.net/foru ... &KW=%2EutbQuoted:"UT disables the default traffic, and they shouldn't appear. You don't say which version of FS you are using.
If it is FS2002, then after you have completed the UT compile these default aircraft should no longer appear, because UT overwrites the file '
traffic.bgl'.
If you have FS2004, UT disables FS2004's default '
Traffic030528.bgl' file by changing its extension to 'Traffic030528.utb'. Go to your FS9/Scenery/World/Scenery folder and you should see two files '
traffic.bgl' which is the
big file generated by UT. Leave this one alone. You should also see 'Traffic030528.utb'.
If it still has the .bgl extension change it to '.utb' and Save.
If you find that the filename is 'Traffic030528.utb' then you have another traffic file somewhere which is generating the default traffic.
This can sometimes happen when scenery designers add default traffic to their work for the benefit of those unfortunate people who don't have UT! "