K2 Comments not appearing under K2 items only standard jcomments

Hi All

I used the quick start to install my site and it worked great.

However for some reason all of the items created in K2 ( including the default ones) have inherited the standard jcomments look, feel and functionality and not the K2 comments. I have reinstalled the k2 comment plug-in but the K2 style comments still do not appear under the articles as before.

Any help please please