i have a code like this

Code:
timer1_tick.....
      backgroundworker1.runsynworker
if x = 10 then
  timer1.stop
end
timer1.interval = 600

the question is
sometimes i run this code there's no error
but other times there's an error backgroundworker1 is busy...

why it can happen????

how to solve it become no more error with the fix timer interval....

thx