getimagesize() error

I just upgraded my php version to 4.3.0 on a Linux box. The configuration is the same as previous installs except for added support for IMAP/POP. getimagesize() is now reporting the following error: *Warning*: getimagesize() [function.getimagesize <http://www.php.net/function.getimagesize>]: php_network_getaddresses: getaddrinfo failed: Temporary failure in name resolution in */home/www/dev.antfarm/osgw/functions.php* on line *186* *Warning*: getimagesize(http://host.com/graphics/image.gif) [function.getimagesize <http://www.php.net/function.getimagesize>]: failed to create stream: Resource temporarily unavailable in */home/www/osgw/functions.php* on line *186* Get image size works properly when accessing the file through the filesystem. The errors only show up when trying to access the image through http. Can anyone give me some information on how to fix this? My server is running Apache 1.3.24 /w mod_ssl Thanks