[phpOpenTracker-general] Intemittant phpOpenTracker Warning: Could not load "localizer.so"

Intemittant phpOpenTracker Warning: Could not load "localizer.so"

I intermittantly see the error message (have the package installed and the 
appropriate PEAR modules)

Intermittent phpOpenTracker Warning: Could not load "localizer.so"

For now, I have disabled localizer. Possibly not a phpOpentracker issue 
directly, feels more like a bug maybe relating to threads or a race 
condition.

Running Debian Testing on a Apache 1.3.33-6 / 4.3.10-15 / localizer-0.3.3 / 
2.6.7-1-686-smp kernel

My web server is medium busy - with about 100 connections at any time, running 
on a box with lots of CPU power, 2 processors, SMP kernel.

Has anyone on this list see this effect before? Google finds a few (cached) 
examples of the problem, but no discussion.

Cheers
-Richard