The file topleft.php IS in the /pages directory. That is the strange thing.
From the webroot /pages/topleft.php (which is PAGES_DIRECTORY."/topleft.php") is there.
Or do you think it is looking for topleft.php from the u:\ root ?
Hmm, I copied the pages directory to the root of drive u:, .... ad=nd the error message changed.
Now it can not find the config.php file, which is normal.
So will try to define the right path to the pages directory from the webroot.
Update:
When change the line to:
include(WB_URL.PAGES_DIRECT
ORY."/topleft.php");
the next errors appear:
Warning: include(
http://localhost:8081/pages/topleft.php) [function.include]: failed to open stream: no suitable wrapper could be found in U:\Webdesign\wb28\modules\code\view.php(30) : eval()'d code on line 21
So, it seems including a complete URL path is not allowed.
Oefhh, another update (maybe I solve this one myself

);
Changed to line to:
include(WB_PATH.PAGES_DIREC
TORY."/topleft.php");
and get the next error:
Warning: require(../config.php) [function.require]: failed to open stream: No such file or directory in U:\Webdesign\wb28\pages\topleft.php on line 3
Fatal error: require() [function.require]: Failed opening required '../config.php' (include_path='.;C:\php5\pear') in U:\Webdesign\wb28\pages\topleft.php on line 3
Now config.php could not be found (which is in topleft.php by default by creating a page).
I still have not solved it
