by Tina Marles.
To Jonathan Baldwin - I had the same problem (see my post) but somehow I fixed it!!!
I did change the ports as Usman said and changed that file envvars to _envvars, getting the same problems. So, I changed the ports back to the defaults (8888 and 8889) but left the _envvars file. Restarted the servers and voila!!! It worked!!!!
Hope it works for you too!! I use google chrome - not sure if that makes a difference or not.