Pro Sites and Network issues

I installed a multisite networki for subdomains with the WPMU DEV Update. The original domain name pops up and shows the hello world site. But after installing subdomains I don't get the Hello World site. When I click the dashboard from the original domain name pro sites is not on it and even the network is not working, clicking on the dashboard from WPMU DV and everything is back including pro sites and the network. What is going on here???