in reply to sqrt of BigFloat 0<x<1

I get a seemingly endless list of the following warning, when running under -w:
Use of uninitialized value in numeric ge (>=) at D:/programs/activeperl/Perl/lib /Math/BigFloat.pm line 1136.

BTW I'm running it with ActivePerl5.8.0, and the stock Math::BigFloat that comes with it: $Math::BigFloat::VERSION==1.35.

In Section Seekers of Perl Wisdom