Page not found when trying to access my custom module Something is very strange. I have built 8 modules and they all work fine.
When I installed the 9th one, it said "Configuration options have been saved" 
but when I access the path, I receive a "Page Not Found".

Tried : 
 reinstalling module / clearing cache / recoding the whole module / renaming the module / using other path / rebuild permissions / ... even reinstalled the whole site and reconfigured it all.

All other modules are working but the 9th one fails. 

I have seen many posts about this, but none of the options have helped me so far.
Where did I make a mistake? Where can I look in the database to find out more?
hook_menu() had 3 entries: one for entering parameters, one for showing the question selection, and one for showing the answers. 

The error was in the second page, which still pointed to an old (disabled) URL.
The very very strange thing is that the module didn't show even the first working path and that there was no error of it.