Hi,
Minor 'bug' report here. The big ajax loading gif seems to leave a 'blur' when it is hidden after adding something to the cart in Chrome.
I can replicate it on the demo site - http://demo.nopcommerce.com/p/26/etnies-mens-digit-sneaker
It seems ok in IE9.
I've fixed it on my site by making it hide quickly in Presentation\Nop.Web\Scripts\public.common.js by changing line 35
from $('.ajax-loading-block-window').hide('slow');
to $('.ajax-loading-block-window').hide(10);
There's probably other ways to fix it.
Greg