I know this is an old one, but I was hoping it would have been fixed in 2010 sp0:  I have an older assy that I have opened in 2010.  There are dozens of appearances called "color1", "color2", etc. in the render manager.  I delete them, add my own appearances, save, and then they all come back.

Is anyone else still seeing this?  I swear: between problems like this in PW and the lack of functionality in PV360, I feel like SW no longer offers a viable rendering solution.  2011 and the new improved PV360 can't get here soon enough!

Arrghh!