Not a stupid question at all. Actually, I restored everything, because I knew that my System Folder would have had in it items that don't come with a brand-new folder. I never thought it would have such an effect, but thinking about it now, it makes sense. But how, then, to get hold of those extra data? I can't rename the old System Folder in the usual fashion, as is usual in doing a new installation. That is, I can't do that on the Retrospect backups, and apparently, I can't put it onto the new drive after a clean install without renaming it. A dilemma. Any suggestions about how to do it?
Regarding a clean install: I'd have to begin with 9.0.4, the version on my Install CD, then go on through the versions through 9.2.2. Assuming that you are right about the cause for the message I got, if my own system with 9.2.2 is too "old" for the new drive, how would it work with the earlier versions that I'd have to install first? If I don't restart until I'm up to the latest version, will that work?
Regarding your other questions: Tekserve put the System software (9.2.2) onto the new drive. I didn't ask them to do it, but they did. I've written a heartfelt email message to Tekserve, but they haven't returned with one of their own or phoned me. (They used to accept phone calls about problems but no longer do, but occasionally, they'll phone in response to an email.)
What concerns me as much as the strange message is the fifty-odd execution errors (not reported in the process of restoring the data) that Retrospect experienced. Could that have crippled or confused my drive? Maybe the backup files were harmed when whatever was ailing my old hard drive occurred.
Regarding another message about Retrospect: Yes, Retrospect 4.3 is an old version of the software, but it's supposed to be fine for OS 9. When I go to OS X, I shall, of course, have to update that and the rest of the software I have that doesn't work with OS X.
Well, back to the drawing board. I'll try the clean install and hope that I can get my data back from the old drive, which Tekserve gave back to me, through data retrieval. I haven't much faith that the Retrospect data are OK, so I'll have to bite the bullet. Perhaps, Tekserve (who will do the data retrieval) can tell me how to deal with getting the extra data from my old System Folder.
Sorry if this is just too much. I'm getting impatient frustrated and upset. Much is riding on this, including my work, personal files and a lot of other things. I did so hope that my having backed up the files so recently would be a blessing, not a curse, and that having a new hard drive would solve my problems. I very much appreciate your sympathy and assistance, though.
Thanks for everything,