Problem With WordPress Control Panel

Hello everyone,

Whenever I try either adding links to my blogroll, deleting links, or banning someone, or scrolling through pages of my comments, I get the following error message:

Firefox can’t find the server at wp-admin.

Now I’ve tried uninstalling the wp-admin file, and uninstalling, and reinstalling WordPress 2.5.1, but I’m still getting that error message. My hosting company said it has something to do with pages linking to one another, and called it cyclical links. They said the problem was not on their end, and that I should post on the forum.

Has anyone else had this problem? If so, what do I need to do to fix it?

Thanks for your help.