Cannot create negative fill light angle

Hello,
I'm following the very first tutorial (http://unity3d.com/learn/tutorials/projects/roll-a-ball/set-up) and it all seems to work, however for my fill light whenever I set the x rotation to -30 it becomes 329.99 and y rotation of -60 it changes to 300.

Thanks for any help, I'm just starting out going through the tutorials

I'm sure it did work, so I've probably clicked something I shouldn't have.....

 

Unless it's just the interface now converts negative as degrees backwards from 360...

 

You got it right. -30 is the same as 330. -60 is the same as 300.