Thanks for your help.
1. This is now sorted by setting filter access to "Guest"
2. I have changed the filters from "Dropdown" to "Autocomplete" and they now pick up what is in the list, so I do not understand why the "Dropdown" option will not work, but I can now manage with "Autocomplete". However when the search is actioned it doesn't come back with a Google Map showing the Location. It just shows the default Google Map somewhere over Western Africa. Any ideas on this much appreciated.
3. Thanks for explaining. Wiki is quite good, but doesn't really help if you have a specific problem because there are so many options it is very difficult to know where to start. I did a Fabrik project about 3 years ago and there were then some very good videos which enabled me to complete the project. I am not sure why, but those videos are not now available, and it looks like we are waiting for new ones. It would have been good if the old videos could have been left up whilst the new ones were being prepared.