Well Not so dude...I dunno what you did but that looks as gay as you file name suggests.

Ive just copied your geometry, 10 sided cylinder, 1 division in height and an SD at base level 0...No probs

The occurance in the image as posted by Vlad is as I said an occurance due to the 5 edges creating the 'pole' or an 'irregular vertex' even with all quads

Im using Maya 6 and this only ever happens to me with N gons etc, even from the days of Maya 4, and 5.

best
Jay