Dear R users I am trying to load the package lmer4 but it seems the Matrix library is failing to load and giving me the following error message :>library(Matrix)Error in importIntoEnv(impenv, impnames, ns, impvars) : object 'Logic' is not exported by 'namespace:methods' Error: package/namespace load failed for 'Matrix' I have even reinstalled the Matrix package but it seems the problem is not going away. Regards, Luwis Diya Disclaimer: http://www.kuleuven.be/cwis/email_disclaimer.htm