[TYPO3-dev] XDebug: Doesn't stop at breakpoint in extension php file

[Koen Van Nuffelen]

Hello,

I configured XDebug and Eclipse PDT for debugging Typo3 projects.
After some (rather a lot :-)) searching, I managed to configure it.
(Lamp installation on Ubuntu 9.04 server on VMWare virtual machine -> 
Eclipse also installed on the Ubuntu server)

Now I have still one question/problem left:
If a start debugging on the index.php file everything goes perfect.
It stops by default on the first line, and I can put a breakpoint, where 
it also stops. I can go to the next line with (F5) and to the next 
breakpoint with (F8).

Now I try to put a breakpoint on an extension PHP file. 
(class.wt_directory.pi1.php) But it doesn't stop on the breakpoint.

Do I have to tell the debugger that it has to include this PHP file?
Or has it something to do with cache (not loaded because already 
cached)? Or another configuration I missed?

Any hints are really appreciated.

Koen