I installed Oracle SQL Developer and am using Oracle Database 10G Express Edition. Whenever I attempt to create the Film Club Database I get prompted with error message ORA 01100 - database already mounted. Do I need to create a new profile and then a new database? Since the only login I have created with a username and password seems to be

system:password

I have established a successful connection to Oracle 10G Express, so I'm really lost here and don't want to toss my laptop out my window just yet...

Okay, I just solved my problem after spending half a day of cursing at my laptop. I needed to login and create a new user with privileges to create a new database, as the "system" profile already had one database associated with it. I suppose I could have kept exploring options to create a new database under that profile via the administration console, but I was unable to and just figured this out. I'm awesome.