I used wordpress program to set up my blog on 1&1 server. i can reach the "log in" page. But after I put my user name and password, it leads me an error page. I did check my site url and the wp_log in page. They seem fine. I don't have a firewall. So I don't know why the "log in" page of my blog cannot direct me to the next page. I really appreciate your help.