Choose a fish like the Queen Angel,
(old type in v1.1)
Look closely at the caudal peduncle,
(that bit between the tail and the body)
Toggle the N key on and off a few times!
If no difference is seen, check out:-
http://www.sony-cp.com/en/support/faq/
http://www.visionexpress.com/
If you DO see a difference, .............. Congratulations! - you've become a believer!
..................... May the CalcNormals be with you!