I am using ReSharper 4.5, and what often happens when I am converting explicit properties into auto-properties, is that I will accidentally chose \"Add XX to abbreviations list\
In Resharper 7.x it's different than v6.0, its under the specific Language, for me Resharper/Options/C#/C# Naming Style/Advanced settings at the bottom of which are a list of space separated abbreviations.
Here's jetbrains (outdated?) site which details (I think the 6.x way of doing it?) http://www.jetbrains.com/resharper/webhelp50/Coding_Assistance__Naming_Style.html#dynaProc3