Dear All, I found this nice example of PCA application on the web http://www.r-bloggers.com/principal-components-and-image-reconstruction/ and wanted to reproduce the results for myself. I installed biOps the usual way and got the message *package 'biOps' successfully unpacked and MD5 sums checked* but when loading the package, I get *Error in inDL(x, as.logical(local), as.logical(now), ...) : unable to load shared library 'C:/PROGRA~1/R/R-210~1.1/library/biOps/libs/biOps.dll': LoadLibrary failure: The specified module could not be found.* I checked the directory and the .dll is there. I do not understand the source of the problem - anyone encountered this type of behavior? I would very much appreciate comments / suggestions. regards, Konrad [[alternative HTML version deleted]]