Question : Cannot login to new sql instance

I just installed sql server 2005 std and I was trying to authenticate to the server to begin creating a database.  However, my domain admin account would not work when trying windows authentication and I tried sql authentication using sa for the username and a blank password but that won't work either.  What am I missing?

Answer : Cannot login to new sql instance

You can check if the SQL instance is running by looking at the services on the server.

for each instance you should see a service called:

SQL Server (instance name)
and
SQL Server Agent (instance name)

You should also see a service called:
SQL Server Browser

All of these services should be running.