Not really a problem, but I can't figure this out: (OS: Windows XP SP2) I have both R-patched ("R version 2.2.0, 2005-10-21") and R-devel ("R version 2.3.0, 2005-10-21") installed. For both, I set options(chmhelp = TRUE). R-patched has no problems, but in R-devel, attempts to access help result in a Windows error message: "The procedure entry point HtmlHelpA at 16 could not be located in the dynamic link library hhctrl.ocx." with an R error message: Error in dyn.load(x, as.logical(local), as.logical(now)) : unable to load shared library 'C:/StatisticsPrograms/R/Rdevel/bin/Rchtml.dll': LoadLibrary failure: The specified procedure could not be found. Replacing Rchtml.dll in \bin with that from R-patched fixes the problem. A hex file compare claims the two versions of Rchtml.dll are identical, except for the creation dates. Any ideas? Peter -- Peter Ehlers University of Calgary