After it is initially installed, without Visual Studio running, NCrunch is working fine with it's menu item on the toolbar.  I can run it all day as long as I don't restart Visual Studio.  Then is just disappears.  If I rerun the MSI is registers as already installs and prompts with a Repair/Uninstall option.  Selecting the Repair option beings NCrunch back to Visual Studio, again as long as it is not restarted.
Here is a link to my dropbox share, is has a before and after for the VS Info (from the About VS dialog),  Devenv.exe /log, and ProcMon (SysInternals) with a filter for Remco.
http://dl.dropbox.com/u/89344/NCrunchLogs.zipThe Remco Software folder just disappears from the 
C:\Program Files (x86)\Microsoft Visual Studio 10.0\Common7\IDE\Extensions\ folder
This is a brand new machine with clean installs on everything and I don't have any issues with is.
Any ideas?
Eric