When I make changes to the theme settings, css, or widgets on my site, the changes do not go live after saving--even after hard refresh.
The only hack I found to force changes on the live site is to apply another theme briefly and then switch back to my normal theme. I've made do with this annoyance until now. My current theme resets some of its settings when I switch to another theme.
This problem has been present since I first installed WP on my domain 1 year ago, so it is not limited to WP 2.9.1.
If you can find a solution to this on the forum already, thank you. I did not see one in search.