Originally Posted by
drlogik
I got it to run even more evenly by loosening the chain ring bolts to a little tighter than finger tight and rotated the crank to find the high/low spots then softly bumped the chain ring with a rubber mallet, then tightened the chain ring bolts.
That's the Sheldon Brown method mentioned by
TugaDude. It doesn't work with spline-mount chainrings, however.