Thread:Project:Support desk/help with this: Fatal error: mcrypt create iv()/reply (21)

Note, fast-cgi can be used under linux, its just not anywhere near as popular. Generally you'd get a different error message if your host is the one restricting the function.

I wonder if this entire thing is a typo in php source. They have the exact same error in two place, in one place its a warning, in the other its a fatal.