I am running access 2003.

I have two questions.

1) Why is it I always get the Security Warning message when I open my Access database saying
Opening "C:\filename.mdb"
This file may not be safe if it contains code that was intended to harm your computer. Do you want to open this file or cancel the operation?

Is there any way to stop this message from popping up?

2) Whenever I create a database in my Access 2003 it keeps creating it in Access 2000 format. Why is that?