I have a SEARCH form on a page to which I pass a parameter (unique ID) as a URL parameter, and on the SEARCH form I use [get param=idparam] to populate the unique ID field.  

In turn I'm using another Text field to Lookup - "Watching" the ID field.  

The ID field is populated as expected.  

The problem is that the Text field doesn't update on page load.  If I update the ID field manually once the page has loaded the Lookup Text field is updated as expected.  

So there is a timing issue which have me stumped.  

Any advice? Thanks in advance.