I click to view the profile page of a user I follow and then click the Recent Activity tab. When clicking the "Show older items" link, the additional information doesn't load. The Firefox Error Console, shows the following error details:
Error: uncaught exception: Syntax error, unrecognized expression:
Browser: FireFox 3.6.10
O/S: Windows XP Pro SP3
If you click the link again, it seems to load a duplicate of the activity data already showing.