load of methods package causes strange return values

I have a small function that calls a shared-object(built on Fortran 
sources):

dyn.load("mdl.so")
mdl(notCensored, censored)

$mean
14.85  #This is correct

Here's the strange part - when I load the methods library, my function 
starts returning garbage!  No other library seems to have this impact.

dyn.load("mdl.so")
library(methods)
mdl(notCensored, censored)

$mean
1.011574e-34  #This bogus!

I've beat my head on the wall trying to figure this one out.

-R



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