I don’t know how many people continue to maintain at least the prior two versions of AutoCAD running on a single computer. I don’t think I have ever had an issue with Raster Design demand loading into Civil 3d in a number of years, present license change issue aside. [Had to re-up a seat because our renewals license mix would leave us short – ouch! ]
It turns out that Raster 2009, if loaded, messes with Raster Design 2010. Demand loading in Civil 3d 2010 doesn’t work with 2009 Raster installed. Running 2010 from the Raster Design Icon works, however, it is very easy to set off a CER if Raster 2009 is loaded.
The simple fix – uninstall Raster 2009. All my issues with Raster Design in 2010 are now gone. Thanks to the support techs at Autodesk who helped me track down the issue between Raster Design and Civil 3d 2010.