Quoting Jody Cleveland georgedamonkey@gmail.com:
I recently upgraded from Drupal 5.12 to 6.6 and now I'm unable to rearrange block order. I click and drag blocks to where I want them, and as soon as I save it reverts back to the way it was. I tried a new site within drupal 6, and that works fine so I'm pretty sure it has something to do with the upgrade.
Any ideas what may be wrong?
Data caches? Try truncating the cache and session tables. Try looking at the result in a different browser.
-- Earnie http://r-feed.com Make a Drupal difference and review core patches.