This is my function I have a global variable (m._lstuid) which stores the last gen id and the next gen id is first compared with the stored id so as to avoid duplicates on a fast machine, but it still gens duplicates

FUNCTION nextid
m.zresult = m._lstuid

DO WHILE m._lstuid = m.zresult
m.zresult = logicfornextid()

*** I had to put this to stop duplicates and I hate it
*** WAIT "" TIMEOUT 0.001
ENDDO

m._lstuid = m.zresult

RETURN m.zresult


what am I doing wrong, why do I still get duplicate??????

Thanks in advance.