Many thanks for the reply and help. I think the settings you mentioned are as they should be.

Sorry, I thought I had caught all the details - the missing dropdowns setting is to "enable dynamic dropdowns" and is set to 1, with the sub menu box set for "On for all SBA Tracked"

In the options name manager, the dropdown option is set to " SBA Select List (Dropdown) Basic"

Would there be anything in the SBA setup that I may have missed? When installing I did the file check which came out OK and then ran the full database install. I also ran the stock_by_attr_install.php from my browser, but I am not sure if it was successful.

Thanks again, Gordon