This issue has been plaguing me for some time and I usually just work around it but today I finally found a fix. It has happened in Visual Studio 2010, 2013 and today it started occurring in 2013 RC. I found a fix in this Microsoft Connect thread and thought I would blog it as a few of the other guys at work had also encountered it from time to time.
I don’t know if this is the “official” fix but the following worked for me:
1. Find in Files for any search string.
2. As soon as it starts searching spam Ctrl – Scroll Lock.