I know it would be good for others to know this aswell, but I've 
changed that much time that I don't know anymore. I will post my cache 
settings here when I face this problem again.

...and what was it *before* you changed it?  i.e.  When it was not working?

this is what i've changed to an hour ago and since then it looks quite 
ok. maybe this will last.



$conf['session']['cache_limiter'] = 'nocache';



$conf['share']['cache'] = false;



$conf['cache']['default_lifetime'] = 86400;

$conf['cache']['params']['dir'] = Horde::getTempDir();

$conf['cache']['params']['sub'] = 0;

$conf['cache']['driver'] = 'file';



$conf['memcache']['enabled'] = false;

I have no idea why the browser would effect the cache, but can you 
please post what you have setup as far as caching goes?

today i realized that this effect only occurse with  firefox browser 
version 2.0.0.12, internet explorer and safari browser display the 
galleries without problems.

does someone know what this strange behaviour could cause?

I need to say that the behaviour of ansel is very strange. It works 
for the moment then it gives such an error:



Fatal error: Call to a member function get() on a non-object in 
/var/www/mail/ansel/lib/Tags.php on line 155

Now it works! The problem doesn't occur anymore.



Thank you very much.

I am unable to reproduce this using various settings for horde's and 
ansel's cache, but I made a small change to the way the cache is 
checked for.



Can you see if what I committed fixes this for you?  If not, can you 
please post what your various cache settings are?



http://cvs.horde.org/diff.php/ansel/lib/Tags.php?r1=1.73&r2=1.74&ty=u

Adding a Photo leads to:



Fatal error: Call to a member function expire() on a non-object in 
/var/www/mail/ansel/lib/Tags.php on line 410