Finally forced to uninstall/reinstall FSX. Followed SimForum's tutorial by Nick Needham and all went well through installation of the two original FSX disks. Loaded the default flight and looked at the .cfg then rebooted. Next the 'Acceleration' disk - all I got was a blank .exe page. Tried it on my wifes machine - opened with the normal page so the disk's OK and she has no FSX. Having just used my CDRom to install the basic FSX, have to assume it's OK and proved that by doing a setup/repair of XP. What am I missing here?
How do you mean "blank .exe page"?
Have you got UAC turned off ... or are you running the upgrades as Admin?