I just wanted to share something with you that I encountered last week. In fact, it was a customer reporting the issue where his tool palette was showing only block and no civil assemblies and subassemblies were there. See this picture.
Looking at the default location C:\Users\<user>\AppData\Roaming\Autodesk\C3D 2013\enu\Support\ToolPalette it all looked normal.
Luckily (and I have no memory of what I did and when) I was able to see the same issue on my machine. Perhaps, because during the troubleshooting of many daily issues I have, I may have placed, misplaced or whatnot some of the files program needed to run. Long story short - I was able to see the issue…which is generally a good start. To see how to resolve without reinstall, after the jump.