On Fri, 19 Feb 2010, Jim Tarvid wrote:
Have you run "cron"? One early task is to install a crontab. Another is to install drush.
Cron would cause a "no updates available" or "updates never checked" sort of error, not a "can not get updates" error.
Have you checked the drupal logs for any kind of errors? admin/reports/dblog is a good place to start.
Luke