After typing into R 1.8.1 gui: >Library(simpleaffy) I receive the following message window: "The procedure entry point pow could not be located in the dynamic link library R.dll." This message is followed by a warning in R as follows: Error in dyn.load(x, as.logical(local), as.logical(now)) : unable to load shared library "C:/PROGRA~1/R/rw1081/library/simpleaffy/libs/simpleaffy.dll": LoadLibrary failure: The specified procedure could not be found. In addition: Warning message: package simpleaffy was built under R version 1.9.0 Error in library(pkg, character.only = TRUE) : .First.lib failed Could someone help me with loading the simpleaffy package? Scott Ochsner Baylor College of Medicine Houston, TX 77030

> "The procedure entry point pow could not be located in the dynamic link > library R.dll." Hi Scott ... This seems to be a problem that has erupted in the affy-related packages (so far 'affy', 'affyPLM' and 'simpleaffy' - I need to go and see if any of the others are affected). Jim Macdonald & I spent some time today trying to track down the how & why this is occuring, but are trying to resolve this as soon as possible. As a side note: If you're using the BioC-devel packages, you will want to start using R-devel (on track to be R-1.9) as some of the BioC-devel packages are now utilizing functionality only found in R-devel. Thanks -J