WordPress comments now showing

I have wordpress website. On test server it shows comments. As you can see below.

http://www.geniusmindgraphics.com/einde

But when I transfer it to customer’s server it show author name and date but do not show comments. Its below.

http://www.eindelijkverkocht.nl

I have brand new installation on same server and have same problem.
http://www.eindelijkverkocht.nl/new

Please help me how I cansolve this problem.
Thanks