Sorry to force your washing into public view, but at least it wasn't in vain: I think I shall forget all about correcting for verticals in PS, which saves me a lot of mental grief! Grief, because it would probably have meant a move to the latest version when, apart from verts. the old PS6 does me pretty well.
It's strange: I can't tell if it's me or the machine, but you may remember that some year or so ago I was having nightmares putting two images side-by-side as a single file. Well, following various bits of advice from readers here, I got the hang of it in PS6 and discovered it was pretty simple to do, and I did, showing a couple of such things here to show my gratitude, as it were. Now, it's impossible. I follow the written instructions again, and it fails to stick the two images together. It must be a jinx all right!
Some Jinx! Looking for the joined image, I discovered that another Folder, containing most of my Finished files, has vanished from 2 external drives! Don't ask. I do have most of it on CDs though - I hope! No bloody wonder I love trannies! Woe is me for I'm undone.
Anyway, here's what I can no longer do.
A chap I know came out on holiday and ran me through it again: problem solved!