Thanks Diane. The reset of the auto-compete list didn't stick unfortunately. We are using System Centre Endpoint Protection for our anti-virus. The add-ins are:
Business Connectivity Services Add-In
iCloud Outlook Add-In
Lync meeting add-in for MS Office 2013
Really hoping someone can help us as this problem is appearing more and more in our organisation.
We have a mix of Outlook 2010/2013 and it is happening on both versions. When you type a name in the To field, outlook usually auto-suggests the remainder of the name. This works for a...