F Function Keys not working
Help.
I'm trying to use the F Function keys/short cuts on my iMac desk top. For example, in Library module I want to rename a number of photos, hit the F2 rename and the brightness on my monitor goes up.
I've checked System Preferences/Keyboard and check box the Use F1, F2 etc keys as standard function keys. But this doesn't solve the problem. Is there another configuration that I'm missing?
Using iMac 10.12; LR CC 2015.10
Any suggestions would be appreciated.

