Broken images -> HELP!

Hello,

When I open my page (http://www.ieniemini.net/gallery) for the first time, I get sometimes a broken image picture (you can see it at the printscreen http://www.ieniemini.net/error.JPG). When I refresh this page he will open it the right way and when I want to look at a specific photo it will open corrictly.

What can I do about it so it will open the first time the way it should?

Thanks in advance!

Erik

Gallery versie = 2.2.4 core 1.2.0.6
PHP versie = 5.2.4 apache2handler
Web server = Apache/2
Database = mysql 4.1.21-standard, lock.system=flock
Toolkits = ArchiveUpload, LinkItemToolkit, Thumbnail, Gd
Versnelling = none, none
Besturingssysteem = Linux boost.serverboost.nl 2.6.9-67.0.1.ELsmp #1 SMP Wed Dec 19 16:01:12 EST 2007 i686
Standaard thema = matrix
gettext = enabled
Talen = nl_NL
Browser = Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30; InfoPath.2)
Rows in GalleryAccessMap table = 43
Rows in GalleryAccessSubscriberMap table = 399
Rows in GalleryUser table = 2
Rows in GalleryItem table = 397
Rows in GalleryAlbumItem table = 9
Rows in GalleryCacheMap table = 0