Yip - that's what I was doing.
I changed from Ed's Emulator to Developer Emulator port 8000.

I have been told today though that now I have logo's etc it would be best if I changed back to Dev port 80 in order to use a less experimental Emulator.

So I will change port number tonight - I am told that's all I need to do - no clearing of data is needed. Yay!

Bruce