I have a really strange problem and I am wondering if anyone has come across this before. One of our customers complained to me that some of their users are experiencing an issue whereby calendar entries are displayed in Firefox using the web interface, but not in Internet Explorer (6 or 7) and Outlook (2003). I am not sure about 2007 because I have not had any results from their testing. There seems to be no pattern as to which boxes are affected either, but I have included screenshots of the symptoms.
Any suggestions/help anyone can offer would be most appreciated.