When one clicks 'Reply with Quote' it says it's loading on the first click but never does anything. Once you click a second time it reloads the page and then works. To fix this, I changed a link URL somewhere in the admin CP (i don't remember what), but once I do that then the smileys no longer work. What do I do?
Try disabling your modifications/plugins and see if you still have this problem.
Note: To temporarily disable the plugin system, edit includes/config.php and add this line right under <?php
Thank to Lynne, we figured out that my AJAX.php file was missing in my root. Downloaded that file from members.vbulletin.com and uploaded it through my FTP program. Everything works perfectly now! Thank you very much Lynne!