[Peterm1]

Sorry about the delay in responding I have been away form my desk and thanks for all your efforts and your help. There are 47 sfs files in my modded installation (compared with 50 in my unmodded installation) So something is obviously awry - And of course why there should be fewer files than the 49 you specify is a mystery. I cannot conceive of how they could have disappeared. Maybe I should try a clean install by again duplicating my entire installation of FB46 and then re running the mod installer. Or do you think I could copy he SFS files across from the unmodded back up then re run the mod installation over the top of them???????

The unzipped exe file is 47.2 megs in size incidentally and naturally I told it to overwrite. So I do not understand how this could occur.