I\'ve used TFS Power Tools on a daily basis for several months. I particularly depend on Windows Shell Extension.
For about a week now, two issues have come up:
The missing green icons can be explained here. It is because Windows has a limit of overlay icons it supports. The details on how to fix it are in that blog post.
How long are you waiting after entering a folder before you perform the first Right Click? It sometimes takes a while for the TfsComProviderSvr.exe
to check if the local folder is a workspace and register the shell extension.