I am getting a superfluous error message that my Geneva version is too old when I start up FSX.
You are not getting a "superfluous" error message. You are getting an useful message that is warning you that you have something that is not updated.
Since Geneva has just been released, this can't happen so, if you haven't downgraded the Addon Manager instead, the only explanation is that some files from Geneva has been corrupted on your hard drive.
[quote[Although I bought my version just yesterday I again downloaded and installed the latest Geneva version (today) new and downloaded and installed the latest Addonmanager also.[/quote]
As I've said, since Geneva is just been released, there's only one version of it. Since, usually, this message might appear even if you had an old version of the Addon Manager BUT, since any old version didn't checked for Geneva because it obviously hadn't any notion of it, you probably HAVE all updated, but a file from Geneva was corrupted somehow in the meantime.
But I am still getting that meaningless message!
No, you are getting an useful message, which is informing you that "something" is not right. If you are suffering from local files corruption, it might be a sympthom of something bigger.
* Had that same problem with your Bergen scenery awhile back until I found out I had to uninstall and reinstall the Addonmanager after installing Bergen to make that message go away!
Bergen was an entirely different thing, because the issue is the Cloud9 installer doesn't include the SP2 fix that was released after some time so, if you had the current Addon Manager (which checks for that fix to be applied), and forgot to apply the fix, you should have instead apply the fix AND update the Addon Manager as well. This is different from Geneva.
* This proceedure unluckily doesn't work for Geneva!
Yes, of course, because it hasn't anything to do with it. If you are suffering from a corrupted BGL file, it's no use updating the Addon Manager, that doesn't contain with any BGL, you need to fix the scenery instead.
Also, since Geneva already comes with the latest Addon Manager (it doesn't really "comes": all our recent installer get its latest version online automatically unless you don't have an internect connection active), it's no use keep updating the Addon Manager in case of problems, because both Geneva and the stand-alone Addon Manager installer just download the same files from the same locations online when they start.
How can I stop this error from occuring, since it is costing me precious time that I would enjoy more by flying??
You should uninstall/reinstall the scenery. This will restore all BGL to their original locations and will also download the latest Addon Manager files in the process.
IF the message goes away, and then it suddendly appears without having installed anything, then you would be SURE that something is corrupting your files.