Gone back to a stock VS2010 setup. No Luck...
Removed the .SUO files from the projects I am working on.. No Luck
Intellitrace is off... No Luck
I am now working on building a bare bones Win7 VM with just enough stuff to support my projects, IE IIS,SQL DEV, Silverlight 4, some third party Silverlight components, (ComponentOne, Telerik, NorthWoods GoXAM and some others that we have made)
Will see if I can make a stable env out of that. I just hate the notion of development in a VM on a dev machine when the actual iron is running the same stuff and SO much faster....