Installed update...how do you refresh a page?

Deema • nerd
I just installed the iPhone update. I'm getting used to it -- I may love it someday. I like the increased comment character quota.
Right now, however, I'm annoyed that I can't refresh/update a group page (so that the most recent comments are on top). Has anyone figured this out or can an admin help?
I posted here instead of emailing support, because I thought someone else may have this problem.