Since I changed my windows password I can no longer type into a checked out file in Visual Studio 2013! Where before I just needed to start typing and it would check out the
I too had this problem with the latest version of ReSharper (9.0.0.0), but clearing the cache as stated above did not work. I actually had to go into my ReSharper options (ReSharper -> Options -> General) and click the "Clear Caches" button. Once I did this and restarted VS everything is working again.