Items wont add to cart

Hi,
i am having problem that when i add a product to cart, then go to cart certain products dont add to the cart.

of 3 products i sell, it seems that only 1 is able to added to the cart.

and even this 1 product that can actually be added to cart, when i go to update quantities in the cart it wont update.

any ideas on how to fix?

i am running eshop 1.2.6

Hi again Woony,
Sound like this is an outstanding issue only with your site. Can you please send me the URL to your site here so I can go there to check for you?
Hope to hear back from you soon.
Sincerely, Giang

site is sent

Hi again Woony,
Thank you for sending me the site. Seem there is a small issue with SEF. I need to login into your site to check. Can you go to Skype with me?
Sincerely, Giang

ok

yes it was an issue with my .htaccess file

i have loaded joomla 3.2 default and now site works fine again

Hi again Woony,
That is OK. So this topic should be closed now.
Sincerely, Giang