Thank you very much.

This works, but not completely...
Suppose I have this code:

   $: << File.dirname(File.expand_path(__FILE__))
   require "Classes/Window"
   require "../Modules/InstanceCounter"

Now ruby finds "Classes/Window", but it doesn't find
"../Modules/InstanceCounter".

Is this normal?
Is there a solution?

Many thanks in advance for all helpful hints.

Best regards,
Francis