When using: "require 'engine.rbx'" under mod_ruby, I get "File does not
exist" error. However, if I change "require" to "load", it gets loaded
allright. the file and it directory has correct permissions (755).
"Untaint"-ing the file does solve the problem.

I am particularly confused about this error - how can the ruby say the
file does not exist when it evidentnly does?