I eventually tracked down that the blank screens were the result of a mis-installation of ioncube. I copied the ioncube folder I'd downloaded into my htdocs folder and ran it by typing http://localhost/ioncube/loader-wizard.php into my browser. This guided me through the process of downloading ioncube again this time into the correct location and telling me how to update the right php.ini file. (Actually you will only find out when you've done it wrong that you need the v6 version not the v9 one; or at least I did, using xampp and windows 7.)
Having got access to my site again, my CB login form generated a 'function ereg is deprecated' error. apparently the result of using php 5.3. It seems that whilst CB generally can handle this, CBSubs as yet cannot, though the manual says simply 'version 5 or better'. The instructions I found for adjusting my xampp configuration to run php 5.2 just screwed up my system so I downloaded
wamp
and
php 5.2,
. I set wamp up to run 5.2 and then copied across my joomla files, (everything in the htdocs folder in xampp to the www folder in wamp).
And hey,it worked... hope it helps someone
Post edited by: krileon, at: 2010/09/14 16:33