Zend Studio debugger advice
Whenver you’ll find yourself in a situation where you click the ‘debug’ button in your browser (on the Zend Toolbar) and nothing happens - here’s where you should look:
In zend.ini there’s a line:
zend_debugger.allow_hosts=127.0.0.1/32
Just change this to your IP address and everything should work fine.
I found out about this by reviewing the Apache error log for that domain.