Babel runtime not found - on exisiting and new projects ver 1.4.4 (RESOLVED)

Hi

I have just updated to 1.4.4 due to the DDP error that had appeared (a few days ago and was fixed by this 1.4.4 release)

I now get this error on existing and newly created projects…

babel-runtime.js?hash=8159173…:47 Uncaught Error: The babel-runtime npm package could not be found in your node_modules
directory. Please run the following command to install it:

I have spent some time with google/SO and attempted meteor npm init and meteor npm install --save babel-runtime (as suggested by the error)

any other idea short of uninstall meteor and start again? Things seem to be getting somewhat fragile with meteor + npm +

Thanks

UPDATE
In the end I gave up and uninstalled meteor, rebooted, re downloaded from meteor.com and reinstalled - things now seem to be working again.