Hi Michal

I work with Joomla 1.5 and Virtuemart 1.1.3 stable.

I installed ARTIO JoomSEF v3.2.10 and bought and installed VirtueMart JoomSEF Extension 2.0.1.

By following your advice, I set the server QUERY_STRING on "no".

BUT ...

1) My Virtuemart configpage shows many errors:
- Notice: Trying to get property of non-object in C:\wamp\www\sitejoomla\libraries\joomla\html\html\select.php on line 85
- Notice: Trying to get property of non-object in C:\wamp\www\sitejoomla\libraries\joomla\html\html\select.php on line 85
- Notice: Undefined property: vmLanguage::$_PHPSHOP_CONFIG in C:\wamp\www\sitejoomla\administrator\components\com_virtuemart\html\admin.show_cfg.php on line 36
- Notice: Undefined property: vmLanguage::$_PHPSHOP_ADMIN_CFG_GLOBAL in C:\wamp\www\sitejoomla\administrator\components\com_virtuemart\html\admin.show_cfg.php on line 48
- Notice: Undefined property: vmLanguage::$_PHPSHOP_ADMIN_CFG_PATHANDURL in C:\wamp\www\sitejoomla\administrator\components\com_virtuemart\html\admin.show_cfg.php on line 445
- Notice: Undefined property: vmLanguage::$_PHPSHOP_ADMIN_CFG_SITE in C:\wamp\www\sitejoomla\administrator\components\com_virtuemart\html\admin.show_cfg.php on line 509
- Notice: Undefined property: vmLanguage::$_PHPSHOP_ADMIN_CFG_SHIPPING in C:\wamp\www\sitejoomla\administrator\components\com_virtuemart\html\admin.show_cfg.php on line 692
- Notice: Undefined property: vmLanguage::$_PHPSHOP_ADMIN_CFG_CHECKOUT in C:\wamp\www\sitejoomla\administrator\components\com_virtuemart\html\admin.show_cfg.php on line 765
- Notice: Undefined property: vmLanguage::$_PHPSHOP_ADMIN_CFG_DOWNLOADABLEGOODS in C:\wamp\www\sitejoomla\administrator\components\com_virtuemart\html\admin.show_cfg.php on line 810

2) I can not view my list of products and indication of this fatal error :
- Call to undefined method ps_product::getPriceByShopperGroup() in C:\wamp\www\sitejoomla\administrator\components\com_virtuemart\html\product.product_list.php on line 328

I am looking for all day on the forum (maybe I searched wrong) solution to these problems.

Do you have an idea and / or advice to me?
Thank you in advance