Error with With "Visit Dashboard" link after registeration on wordpress multisite

on my website: http://africaretails.com, after registrating/ signing up for a blog and the user is presented with a screen with the options:
"Visit Dashboard" "View Site"
When the user clicks visit dashboard, it gives the following error: "you do not have permission to access this page"
But when the user types the url to their admin page (http://.../wp-admin)then they get their login screen.
I have upgraded to the latest wordpress install (had thesame issue with previous installs, the issue remained when i upgraded ).

Someone said its issues relating to easy blogging., well, i disabled Easy Blogging plugin and the problem persists.

Please help me resolve this urgently. Thanks