Gallery no longer displays

The following information is required to get an answer:
Get this information from the PHP diagnostic (in the configuration wizard).
Gallery URL (optional but very useful): http://temples.com/mod/gallery/albums.php
Gallery version: build 8/16/2007
Apache version: 2.2.6
PHP version (don't just say PHP 4, please): 4.4.7
Graphics Toolkit: ImageMagic
Operating system: Linux
Web browser/version (if applicable): n/a

Since porting over the Gallery and photo album from an older Sparcstation to a new Intel/linux box, my Gallery will no longer display. I get a normal "200" not a "404" but it's a blank screen.

The photos are all where they should be; specifying a direct URL to any of the known photos brings up that photo; but not any Gallery pages.

Another virtual domain on this server with Gallery albums displays fine with no issues, so I'm reasonably certain that it's not a permission problem or a difference with Apache server user/group names between the old and new boxes. I can "point at" the working Gallery albums by hand-editing the former's config.php entry, and it correctly displays Gallery index pages. This would seem to argue that something is amiss in the actual /album directory, possibly having to do with the database info?

The only noticeable difference between this other virtual domain's Gallery and the broken one, described above, is that the latter is much larger and contains approximately 169 or so albums.

I have root access on this box, incidentally.

Jens et al: I'd be eternally grateful if you can lend me a hand with this.

-Phil

Hi Jens,

Yes, I've gone over the config.php entries several times. Unless I'm missing something obvious, all paths and URLs have been adjusted accordingly.

-p.

Sorry for the delay in responding, Jens.

When I rename .htaccess (to .htaccess-BAK) there is no change. I still show a blank page.

-Phil

Hi Jens,

I sent you a private message via the web forum. Did you receive it?

-Phil

Interesting--I'm not seeing entries in either -access or -error logs when specifying a URL ending in /mod/gallery. (I thought I had observed a 302 earlier.) Yet, when I manually edit the config.php file and put in a bogus albums directory, I get a valid log entry with valid '200' codes--along with a non-blank screen complaining that there are no albums.

There's _something_ in the albums directory that is clearly preventing the web server from returning content--normal or error.

Permissions and ownerships appear to be valid in /albums.

If I chmod the albums directory to '000' I get the error on the screen, "Error: Unable to create dir: /usr1/temples/albums/.users". But adding/substituting files in .users from my known-good Gallery directory doesn't seem to cause any change. Nor does selectively chmod'ing 000 on the various gallery albums (e.g., "album01... albun59"). Just a blank screen, and no entries in the Apache web logs.

p.