My server recently had a crash and I had to re-upload my backups (wordpress and its database). After uploading, I overwrote my existing wordpress installation with latest version (I May have already have the newest version - but reuploaded to be sure). Now the blog appears to be fine but when I try to log into the backend, It takes me to wordpress installation page and asks me to create wp-config.php file.
This file already exists. The installer takes me to the next step and gives me a text link to "try installing wordpress now". When I click on that link, the next page says:
"You appear to have already installed WordPress. To reinstall please clear your old database tables first."
What should I do now? Any ideas?