Problem after installation

Hello,

I have just installed wordpress on my test domain, but i have a small problem.
Here goes:
– i made all the necessary configurations
– i pressed install
– wordpress was installed, it gave me the password
– then i logged in the admin section
– when i pressed “View Site” and it takes me to the URL of the blog (“www.mysite.com/blog” for example), it gives me the following message: It doesn’t look like you’ve installed WP yet. Try running install.php.

What have i done wrong? I have a wordpress blog on the same domain, it works perfectly!

They run on separate databases. I erades the wordpress files, uploaded them again, dumped the tables from the database, and i still receive the same message!

The thing is, if i add “index.php” after the url of the blog (“www.mysite.com/blog/index.php” for example), id displays perfectly!

What can I do about this?