I will save/print these suggestions. If I decide to take the next step and proceed with this, I need to make sure it is done right!
NC
Navy Chief:
Here's how I've done it.
1) Change the name of the current FSX folder. You can just add '(old)' to it, to make it simple.
2) Create a new folder using the original FSX folder name. It must be in the same place the old one is, and it must be exactly like the original name. All you need to have is just the folder name, you don't need to put anything in it (ie, effects, guages, sim objects, ect)
3) Put in the first FSX disk, and when the prompt window comes up, click on the fsx.exe option. It will then ask you if you want to uninstall or repair....click REPAIR.
4) Let it run, and when it's finished it will prompt you to put in the next disk. Don't click on the prompt yet. Take out the first disk and put in the next one. Now click on 'OK' that you see on this prompt window.
5) You're going to see another window open within seconds after putting in the second disk, DON'T CLICK on the options it gives you. Just cancel it by clicking on the X. you've done all you need to do by just clicking 'OK' on the other one.
6) Once this second disk has run it's course, put in the Accell disk, and it will ask you if you want uninstall or repair....click REAPAIR.
Unless you want to redo all of your settings, then you can leave the old FSX cfg in place (appdata/roaming/Microsoft/FSX). If you want a new FSX cfg, delete it, then start FSX.
EDIT: For those people who want new files for the FSX folder that resides within Appdata/roaming, you can just remove them (but back them up somewhere) before you do the repair, and they will be replaced with new files.