Again an OLD blog post may help a little:
http://www.civil3d.com/2006/12/progress-in-the-great-debate-an-easier-divew-twist/
You probably will want to look into the label style's orientation reference. If you are using UCS, you may want to use View as the reference.
HTH,
Josh Modglin
InMotion Consulting
http://www.inmotioncon.com
Josh Modglin