What if any error's are in your error log? What actualy happens when you go to admin? Post screen grap or pm link. On a fresh install the main causes are 1) You forgot your admin login/password happens all the time. 2) You have a old redirect in you root which is blocking the admin 3) you have not set up the config file properly 4) you dont have correct access set on admin folder or files 5) Check db to see if admin is in it and has password set ( details given above in thread on how to do that) 6) Oh well install messed up remove all onld files and DB and do clean fresh in stall using new download of software. No quick fix just have to do it one step at a time.