Confused about User Registration

Hi:

I’m confused about user registration. I’ve checked the box to allow user registration and registered using one of my email addresses to see what a “registered user” has access to on my blog.

I’m concerned that “subscribers” have access to my dashboard. How can I change that? I just want “subscribers” to be able to comment and and nothing else.

Thanks
The GrouchyMan
Grouchyman.com