Michal Unzeitig wrote:
You can try to turn on the error messages and the you should see probably some Fatal error message instead of the white page. If you would manage to post the error message here, we might be able to help. For example it could be something related to permissions or some missing component.
At this moment I can only say that in our installations it has always worked fine.
This is how the address of the blank page looks, if that is of any use.
www.(MY_SITE).se/administrator/index2.php?option=com_sef&task=upgrade&fromServer=1
I found "Error reporting" under the "server" tab in Joomlas global configuration, and set that to maximum. But the result was still identical - a blank update page without any error reports at all.
As second option I recommend you to install the normal way then. I.e. download the component, uninstall the old version and install the new one.l
Will that keep my URL's and everything? Is it perhaps better to FTP the new files and overwrite the old ones?