Okay, installed 4.3.9 fine - however, I am getting an error at the bottom of my PHP pages - this has been happening for a few days now: Failed loading C:\Program Files\php4\turck-mmcache\mmcache.dll Failed loading C:\Program Files\php4\Zend\lib\ZendOptimizer.dll Any ideas? I have mySQL 4.0.13 installed ---------------------------------------------------------------------------- ------------------------- "Robby Russell" <robby@xxxxxxxxxxxxxxx> wrote in message news:1097701705.11781.12.camel@xxxxxxxxx Peter, Yes, if you build PHP5 code, it's very possible it will not work on 4.x hosting servers...especially object oriented programming. As a rule of thumb, keep your development and live environments as close as possible. :-) Cheers -Robby