From Joomla! Documentation
When creating custom components try to use file names and folder names with all lowercase letters. I had created some complex MVC components, naming my folders and files after my classes in the component. This meant that I had upper and lowercase letters in the folder and file names. During testing on my Windows machine everything worked fine, but when I transfered to a remote host running unix, nothing worked properly. The errors provided by the framework were only slightly helpful in identifying the root cause which was that the JPath:: class implicitly calls strtolower() on all paths. Therefore my files were not being found by the framework. I hope this helps save someone some time.