phpmyadmin plugin says “not found”

Hi all.

I have just downloaded and installed the phpmyadmin plugin for wordpress, so that I can backup my database before I upgrade to the latest version of wordpress.

It appeared to install like a dream. Under the plugins tab, there it was, so I activated it, then went to “manage,” then clicked on the phpmyadmin link, and, well, here’s what I got – http://www.beretta-online.com/error.jpg “Not found”? What’s not found? All the documents are uploaded. I removed it and then re-uploaded it several times, all with the same result. Has anyone seen this problem before? Is it a known bug with this plugin?