**System Information**
Operating system and graphics card
Windows 10
Quadro k2000
**Blender Version**
2.76 48f7dd6
**Short description of error**
With f-cruve window open and the n panel showing. If the cursor is over the n panel the play animation key has no effect. (I checked that it does work when cursor is over f curve window or over properties and many other places.)
**Exact steps for others to reproduce the error**
Probably not needed, but tell me if you can't reproduce