The content slides right and gets squished together

Hello, Im not sure how to explain this, but Ill try...
if im looking in activity view, and im on "All members", but then click the tab to view "My Friends", then all the content (friends, and their activity text) slides to the right and is in one straight up and down line. ive attached a pic.

I can get it to display properly again if i press refresh on the browser.

im using social theme
window explorer 8
vista operating system
wpmu 2.9.2
buddypress 1.2.4.1