[TYPO3-english] Strange problem with powersearch-luence

[J. Bakshi]

Dear list,

I already have php5-pdo and php5-iconv installed. Here is the related part of php.ini

````````````````
extension=pdo.so
extension=pdo_sqlite.so
extension=sqlite.so
extension=pdo_mysql.so
````````````````

and phpinfo confirms the same .

[php -v]  reports

```````````````
PHP 5.2.9 (cli) (built: Dec 30 2009 15:04:38)
Copyright (c) 1997-2009 The PHP Group
Zend Engine v2.2.0, Copyright (c) 1998-2009 Zend Technologies
    with the ionCube PHP Loader v3.3.7, Copyright (c) 2002-2009, by ionCube Ltd., and
    with Zend Optimizer v3.3.9, Copyright (c) 1998-2009, by Zend
    Technologies
``````````````

I have installed powersearch-luence and all the dependents. And still it reports

`````````````
Fatal error: Class 'PDO' not found
in /home/user/public_html/typo3conf/ext/powersearch/lib/class.PowerSearchFactory.php
on line 90
````````````````````````````

Could anyone please suggest a clue what is actually causing the problem ? Why still 

`````````````
Fatal error: Class 'PDO' not found
```````````````

Thanks