installed system fonts are not installed - eh? (was Re: Font corruption)

Any idea why fonts in /System/Library/Fonts might not be loaded into
Font Book at all, until I doubleclick them in the Finder (*and* relaunch
Font Book)?

More elaborate version below:

In article <2007080308381427544-wbyylebtre@cbobkpbz>,
Jolly Roger <wbyylebtre@xxxxxxxxx> wrote:

On 2007-08-03 01:38:07 -0500, Sander Tekelenburg <user@xxxxxxxxxxxxxx> said:

[Font Book: File -> Validate Fonts.]

Hm... I had never done this so tried it for fun. 13 fonts are reported
as having "serious problems". [...]

If you have corrupted font files in your system, I truthfully have to
wonder what *else* is corrupted in there, and how that corruption came
to be.

I had to do a forced reboot about a week ago. That might have caused it.
But Disk Utility reports everything as just fine, I'm well aware of how
to not grant something Admin rights just because it asks, and everything
does behave just fine. That is, until I thought I'd deal with the
reportedly corrupt fonts.

I booted into Safe Mode, allowed Font Book to move the the 12 fonts it
considered corrupt to the Trash and rebooted. Upon reboot I found 178
fonts in the Trash (I kept them aside) and only 2 still listed in Font
Book. /Library/Fonts, which before had listed 61 files, was empty.

I copied (Finder drag&drop) all 61 fonts from a clone I'd made a few
months ago. Rebooted.

Font Book reports no errors. Problem solved.

New problem introduced however: Terminal.app now suddenly shows the
"minute window" problem, as documented here:
<http://docs.info.apple.com/article.html?artnum=25730>. Apple's
solution: Use Font Book to enable Monaco.

However, Font Book doesn't list Monaco at all. Monaco *is* in
/System/Library/Fonts, as it should be. But none of the 32 font files
there appears to be listed in Font Book. When I double-click one of
those font files, they're opened in Font Book which reports them as
"installed". Yet it takes relaunching Font Book before it actually lists
Monaco. After which Terminal.app is OK again.

OK. Fine. Everything OK, I guess. But why the heck wouldn't the fonts in
/System/Library/Fonts be loaded into Font Book at all? (I can
clickety-click them all to get them to be installed, but why should that
be necessary?)

--
Sander Tekelenburg, <http://www.euronet.nl/~tekelenb/>

Mac user: "Macs only have 40 viruses, tops!"
PC user: "SEE! Not even the virus writers support Macs!"
.

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