I have found that when I use "Default System Web Browser" as my browser
when using PDT + XDebug that it gets stuck in "Launching
New_Configuration...". See step 8.a.ii.v in the tutorial here:
http://robsnotebook.com/php_debugger_pdt_xdebug
It doesn't get stuck when I use "Internal Web Browser" or "Firefox" or
"IE", it only does this when I use "Default System Web Browser".