In most standard setups you have:

• Standard database manager name=admin
• Standard database manager pasword=admin
• A first database OpenERP
• You can login this OpenERP database with user=admin and pasword=admin

If you have setup your own database you used the database manager default name=admin.

During setup it asked for the pasword and you have given the masterpasword=database manager pasword: admin.

During setup you have also given you database a name: yourowndatabase

And it asked also for a pasword for the admin of yourowndatabase.

Let us assume you typed here paswordforyourowndatabase.

And it asked you to repeat this. So you have repeated: paswordforyourowndatabase.

After the setup of yourowndatabase you can go back to login. In the dropdownlist you see now:

• OpenERP
• yourowndatabase

You can login in yourowndatabase with: user=admin pasword=paswordforyourowndatabase

Looks like there is a module problem with your installation. Try creating a database, or running OpenERP in debug mode. That will give you further information on what is going on.