I've tried all of the suggestions I see in the forums, and I still don't have any thumbnails.

Adding the 'touch' line into i.php didn't help, disabling mod_rewrite didn't help.

The cache folder remains empty for .jpg images, but does create files (with a zero length however) for .png images.

The .jpg files I'm uploading are mostly fairly small, only around 30 - 80KB, so surely they can't be too large?

phpinfo() has this to say about gd on my box:
GD Support enabled
GD Version bundled (2.0.28 compatible)
GIF Read Support enabled
GIF Create Support enabled
PNG Support enabled
WBMP Support enabled
XBM Support enabled

Which doesn't make any explicit mention of JPG, does this mean GD hasn't been configured correctly on my server? Or does it not usually mention JPG support?

Any ideas? I really like the look of zen, it appears to have been designed very efficiently, but obviously if I can't get it to produce thumbnails, I can't use it.

I don't know the answer to all the tech stuff, but did you try convert a jpg to a gif or png and see if it works then? That will at least tell you if it's only jpg, then you can sort your server or nag your host!

x

well as far as i know it should be one of the below stated solutions

1. not seen thumbnails is all related to absolute path in the htacess file with rewrite mod "on".. check again..

2.check the folder permission for the folder named "cache" which holds the thumbnails to CHMOD 777 and also the "albums" folder ..

im sure its one of the two

Thanks for your response Ilione, as I said if I upload a PNG it tries to produce thumbnails, but they're zero length, which is only slightly better than not producing a file at all. I'll have another go with that though.

janantha, I'm confident that it's neither of those issues. The folders are of course already writeable by the webserver. The cache folder has the same permissions as the album folder, and I'm not having any problems uploading photos to the album folder.

I've already tried disabling mod_rewrite several times, it makes no difference.

I'm pretty sure it's the gd issue I referenced in my post, if anyone knows about GD, could they please drop a word here, most of my sites are on a different server, so maybe I'll try an installation there, but I'd still like to get this working on my personal site.

I've already asked the admin of this box to have a look at gd for me, but I believe it would still be useful to get any possible issues with gd documented in the support forums.

I've had a look at my other server and GD does list JPG support explicitly there, and of course zenphoto works flawlessly on that box. So there you go. Don't ask me why they chose not to compile JPG support into GD on the first server, it doesn't make the slightest bit of sense to me, and I haven't had any reply to my email to the admin as of yet.