Sorry. Should have posted the version.
To vkaryl: I’m on version 2.0.3. I’m using WP-Cache plugin.
To maerk: What I mean is. Can I remove the row from the wp_options table for the rewrite_rules entry and possibly expect WP to recreate the entry. My suspicion is that the entry may be corrupt or somehow hacked.
Since my initial writting I have since renamed the ‘rewrite_rules’ and ‘page_uris’. And yes WP does rebuild these.
