screwed up layout selector

Hi,

I have no idea what I have done and have spent a couple of hours going round in circles on this. In the Invoices starter solution there is a drop down layout selector on the list options. This navigates between list based layouts. I modified the database and added a further list.

I added this to the pop up menu "layout selector" and the menu started to only select the new drop down option. I fiddled with the script "Trigger | Layout selection" and the whole thing ground to a halt. I reimported the script - still not working

I have checked:

Link between drop down and Format - set script triggers in menu

"Layout selecto" pop up menu

Script "Trigger | Layout selection"

"Layout Selector" field in customers table

All seem to be same as they started. There must be something that I am missing. I can't see where the links between drop down items and given layouts are in all of this - I feel this must be the key.

Thanks for you help.

Alex