I have to manage the numbers generated. For example result of rand(75) + 1 could be 1 and then result of rand(74) + 1 could also be 1. So I have to have a cursor containing humbers I don't want anymore.

>>>Can anybody explain me why there seems to be a problem with random numbers and a delay?
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>Certainly seems odd...
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>Re the randomizing code: if I read it correctly, starting thisform.nTot at 75 then decrementing after each hit means 75 can only ever appear first in the sequence since thisform.nTot then decrements to 74; and 74 can only appear first or second, etc etc. This means you can anticipate a preponderance of lower duplicates that can often follow very similar sequence as nTot decrements towards 1, while higher numbers are infrequent and always earlier than (77-n) in the sequence if they do appear.
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>To randomize all numbers in a series, I've seen efforts like this that scatter high and low values and eliminate duplicate returns:
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>=rand(-1)
>declare laNumber(75)
>for licounter=1 to 75
>   laNumber(m.licounter)=m.licounter
>endfor
>for licounter=1 to 75
>   liRandom=int(rand()*(76-m.licounter))+1
>  ? lanumber(m.lirandom)
>  adel(lanumber,m.liRandom)
>  *WAIT timeout 8
>ENDFOR
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