I had posted previously about the inability I had to view a public Outlook calendar on an exchange server on my iPhone. A few of you suggested I use OWA to view the public calendar. While it's very cumbersome, that's what I've been doing. However, and I don't know when this occurred, the public folders no longer show up on my iPhone screen. I also tried to connect to my exchange server using Firefox on a PC desktop. Same result. I contacted my IT help desk who told me I can only access the public folders via Internet Explorer. She's right. They only show up in IE. Well, this doesn't help me much using an iPhone.

Why would one browser not show certain things while another does? And, more importantly, any workarounds?