Hi, I've installed iTunes 7.7. on my Windows XP SP2 desktop at work and I would like to sync my Outlook calendar with MobileMe. Unfortunately it seems that (for some reason) I cannot logon to MobileMe from my desktop. I've entered my username and password (in the MobileMe preference pane in the Windows Control Panel) and pressed the Logon button. After a few minutes the operation times out saying 'Failed to communicate with the MobileMe, please try again later'. Is this because I'm behind our corporate firewall ? Which port does the MobileMe sync app use and how can I check this ?