I have a user on a corporate domain who is using Outlook 2010 to connect to an Exchange 2010 Server. Everything is working normally except for the user's Contacts; she is able to create new contacts with no issues. However, when she modifies an existing contact and saves the changes, the changes will only remain for a short period of time. Sometime after the changes are made, the contact will revert back to its original information and the changes are lost. The amount of time between when the changes are made and the contact reverts is unpredictable and will occur even if Outlook remains open the entire time (in other words, Outlook does NOT have to be closed and re-opened for the incident to occur.)
We have even gone as far as removing the user's Outlook profile and associated files and recreating the profile on the machine. This has not fixed the issue.
The specifics for the user:
Windows 7 Professional, Service Pack 1
Microsoft Office Professional Plus 2010
Intel Core i3 Processor with 4GB of memory
Any assistance or ideas would be appreciated!