My "automatically load components lightweight" (under options) keeps unchecking itself.  It doesn't seem to follow any pattern, the first couple of times I open assemblies everything is fine.  However, after a while, the lightweight box will uncheck itself.  This rather annoying.  Has anyone else experienced this problem?  I am running SW2010 SP 3.0 64 bit.  The problem existed even before I upgraded to SP 3.0.