hello ...
on quick look if i add to cart and i press show cart or continue shopping the page it opens on the popup of quick look ,...

is there a fix for this???

check it here:

www.galore.gr/index.php?option=com_virtuemart&view=category&virtuemart_category_id=78#cart

hmm - if you try this on our demo the modal closes and you go to cart..

but I see your using a 3rd party component com_onepage ..
as this over-rides many of our (especially cart) templates I'm not surprised it doesn't work correctly..

I can only suggest you go thru both sets of cart templates and try to see what is different...

I assume it will be some JS somewhere to close the model on a click...