CMS Made Simple Forums

I'm having a problem after installing CMSMS 1.6.2 or 1.6.3 on my system, in that ModuleManager doesn't show any text that should come from the modules\ModuleManager\lang folder. I have checked that the language file is being loaded, and tried to find why all other modules don't have issues except for this one, but I can't get further myself.

When using E_ALL | E_STRICT in my php.ini, I get a lot of deprecated function messages, but on the ModuleManager I also get this error which doesn't show up in other pages:
Warning: Cannot modify header information - headers already sent by (output started at C:\EasyPHP31\www\cms\lib\classes\class.module.inc.php:2154) in C:\EasyPHP31\www\cms\lib\classes\class.admintheme.inc.php on line 171
(also for line 174, 177, 178, 181 and 186 of class.admintheme.inc.php)

Does anyone recognize this error, and/or know the direction in which to look? Here's the system info on which I'm testing this:

PHP 5.3.0
Apache 2.2.11
MySQL 5.1.35
(I'm using EasyPHP 3.1 on Vista 32bit with SP1)

Please see the attached screenshot

EDIT: Apparently I missed some information - this problem happens for all standard extensions: CMSMailer, ModuleManager, Printing, Search and TinyMCE. I'm sure this info helps to find the problem

Did you also change servers or make any other changes? This is usually either a permission problem or a config.php(incorrect paths) problem.

Actually I just set up the easyphp server on my local computer and installed CMSMS. The front end is flawless, most of the admin panel is too, except for those modules. The path in config.php looks good, also I checked that the language files are actually used, their data is just not put to use correctly by the $this->Lang() code. Somehow.
What about the permissions? I'm using Windows Vista as a base, so chmod is kind of not working, but there's probably something else I should do with permissions?

PHP5.3 is the issue.....

This is the new PHP version, and has some major changes inside. It has made many functions obsolete and being replaced by other new functions. CMSMS isnt made ready for the PHP5.3 yet.

Ronny