in reply to Re^2: In search of a bug in Time::HiRes on Windows.
in thread In search of a bug in Time::HiRes on Windows.

No, I ran your code as-is. Here's more:

perl time_bug.pl > time_bug.txt 1.65 1118806411.5004 1118806411.50041 1118806411.50041 1118806411.50042 1118806411.50043 1118806411.50043 1118806411.50044 1118806411.50044 1118806411.50045 1118806411.50045
Update:

When I ran (output to the screen)

perl time_bug.pl
i.e. without "> time_bug.txt", there're no duplicates.