Has anyone else had this problem? If I receive an Outlook appointment request, it shows up fine on my ipad/iphone, but if the request is modified (the time/ details, etc changes), the revised appointment shows up in my invitations list on my ipod/iphone, but if I accept the changes from my computer, the appointment disappears from my iphone/ipad completely. Running the latest iOS 5 builds on both iphone & ipad. Outlook 2007 on the PC.