I have been using FS9 for over 1 1/2 years with no problems. Last week I purchased a new HD to reinstall FS9 on its own HD. Ever since then, most if not all of my add-on a/c now give me an electrical failure that I cannot get rid of. I have searched this forum and have found numerous instancesof this and tried some of the recommendations, but still can't stop the electrical failures. What changed during the reinstall? It seems that if I start my flight with a default a/c, then change over to an add-on, that it wants to work, but this becomes a hassle!Any suggestions would be greatly appreciated!!ThanksRick

Hi,Do you have FSUIPC installed and if so is "Extend Battery Life" checked? I assume it is not that simple, but worth a question. :)Bob...

It is checked. The a/c startup with the failure. AS I said, nothing has changed, except for the reinstall!Rick