I have built a search dialog to filter records. It is called from the default 'Find' button. The calling function is :

local lfilter
select bookingstbl
set filter to
do form forms\searchfrm to lfilter
&lfilter
go top
thisform.refresh

The dialog returns a good string, and now here is the problem
Search # 1 set filter to arr_date = {^1999/12/21}
returns 14 records, correct, and can navigate them all
search # 2 set filter to pers_key = 126
returns 1 record, correct, 'Next" Button active, no second record
Search # 3 set filter to dep_date ={^1999/12/21}
returns 5 records, correct, all navigate buttons disabled
If I browse the table, there are 5 records in the browse window

The first search works just fine, no matter what the parameters are. But the second search seems to disable the navigate keys.
Any help will be greatly appreciated.