So, Spotlight is (again) not indexing everything. I did the thing that fixed it the last time this happened (reboot, mdutil -E /, wait over night) and that seemed to only make it worse. Then I tried
find / -type f -print0 | xargs -0 -n 1 mdimport
and that seemed to help somewhat, but there's still a ton of stuff missing.
In particular: I'm looking at a mail folder; I see that one of the (very old, unselected) messages has "xmatrix" in the subject. I type "xmatrix" into a Spotlight window, and a couple of messages match, but not that one. Then I select that message in Mail.app, and suddenly it shows up as a result in the Spotlight window. Repeatable with other common words.
Any idea how I fix this?
10.4.7 iMac, Intel, only one drive (internal).