In range and coerce function does not always return a correct result

I passed 20E6 as DBL to "upper limit" input of "in-range and coerce" built-in VI, and also passed 20E6 as DBL to the X input of the VI, yet it says that it is not in range.  (Note: lower limit was hardwired to 0.)
Apparently, there is some kind of roundoff error going on with LabVIEW.
I've seen this before when just wiring 2 doubles of the same value to an "=?" built-in VI.
When I display 30 digits or so, the values then display slightly differently.
How do 2 numbers which were entered by ME (not anything else) precisely as 20E6 manage, over time or by passing thru VIs, or by being copied & pasted -- or whatever -- to become "different"?

This simpliest 'In Range and coerce' does not work on my setup (8.0 and XP). The result should be 0 but it returns -5.
Attachments:
Coerce Not Working.vi ‏8 KB

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