Posted in Common Support Issues
Usually when this happens, there is an error, but php error reporting is turned off, so no error is displayed. It is good to have error reporting off when a site is live, as errors give out useful information to someone who is looking for a security hole. It is also useful to temporarily turn errors on when you are working on a site, and turn them off after.
To check if error reporting is on, please go into the Joomla backend, then (for Joomla 1.5) Help, then System Info, then PHP information, then search for display_errors. In Joomla 1.6 php info is in Site, then System Information, then PHP Information.
If errors are off, please try going into the Global Configuration in Joomla, then Server, then Error Reporting, and set these to Maximum.
If you need help with the error, or you still get a blank page, please contact Ignite Gallery support.