Your post is vague . No fields display? Is that when you create a new field? If so there is a setting under preferences, layout, then check add newly defined fields.
No new records. All versions you have to click new record or use add new record in a script step to add a new record.
A "database" can be a single table in a single file, multiple tables in a single file or multiple tables in multiple files. So I suggest clarifying what you mean by the phrase: "When I create a database".
I had a problem similar to what you might be saying here (you haven't given much info) that was caused by a font problem.
The fields were visible, but not the data in them. If this sounds like what you're experiencing, go to Layout mode, change the font in one field and see if you can now see the values.