Wordpress doesn't work anymore

[lucianovalenca]

I have installed the Word Press 2.0 that I use for my blog, it always works fine but suddenly it doesn't work anymore, I can not login, post or write a comment. In the login screen, for exemple, when I fill the correct username and password and press "login", the same page is reloaded, without any error message.

Somebody knows what's going on?

[admin]

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FreePgs.com Admin