I was running WordPress 2.7 yesterday, when you all of a sudden wasn't able to leave a comment. I had about 2000 comments on my blog. Then, you weren't able to leave a comment. When you tried to, you got redirected to my blogs 404 error-page. I decided to upgrade wordpress, from 2.7 to 2.8.
I did so, and wrote in the exact database-name as I had before. It came to the installation and did not want to get installed.
I went on searching for the problem and I found it.
It was my databse. It was getting too large. It was 99999 KB large. One more KB and it was going to get over 10 MB. That was the problem, so I stupidly enough did not backup my database and I just deleted it and created a new one, with the exact name... and now everything is working.
I'm using freehostia as my webhost. Is there anyway to permit the database file to grow bigger than 10 MB?