I had mysql 4.1 installed, and running with no problems.

I'm a newbie, and accidently installed mysql 4.0 on top of it, and I guess the system "downgraded"

Now all my websites are down, and when I try to log in on phpmyadmin, I get the error message:

"The server is not responding (or the local MySQL server's socket is not correctly configured)"

What does this mean? What do I do to fix this?