George,

Yes. Are you running the UT at the time, with the one frame that auto refreshes? Are you running your email program that periodically checks for new mail? Generally I'm going to make at least three runs, if the standard deviation is too great I run more.

>I was thinking last night about the inconsistent results I got when comparing the ascending and descending FOR...NEXT iteration structures. Something then occurred to me. I may have been in dulging in some very bad (as opposed to weird< g >) science.
>
>The reason I say this is that I'm beginning to believe that unless such tests show a significant (10%+?) and consistent difference, they're meaningless. Why? Win32 is a pre-emptive multi-tasking environment and there's nothing that can (or better, should) be done to change this. This means, to me, that because of this any such test may be impacted by the current program losing its time slice of the processor cycles. I believe (and this is a guess) that this may be the reason that I saw such inconsistent results.