Guys ,I bit the bullet and uninstalled FS9 ,which was a major undertaking as I had to uninstall many ,many different planes and scenery from the programs file because I have found that if I installed the root program(FS9) first many of the addons that put entries in the programs and features in control panel won't uninstall.I am reinstalling FS9 and before I do anything else I'am going to try installing the IL76 and see what happens.
In a way this might be a blessing as I had so many planes and scenery installed I could never decide what to fly or from where to fly.This way I will only put in what I want to fly at the moment.I still want to know what the hell happened so it won't happen again.I'll get back on what happens with the IL76 install.
Maybe it would be a good idea to just do a basic install of FS9, update it and then install the IL-76 before anything else, just to see if the problem appears again. Of course it might have ben an interaction of the IL-76 with another addon, so maybe you should just leave of the IL?
It is a nice plane but I didn't like the paintjobs so I relegated it to my backup drive till repaints appear.
Cheers,
Sascha