I also have the problem trying to start rattle Windows 7 32-bit R 2.12.0
When I try library(rattle) I get an error message "The procedure entry point deflateSetHeader could not be located in the dynamic link library zilb1.dll" I hit OK and it prompts me to install GTK+ again. I tried to uninstall GTK+ first and delete all related files as Dieter suggested but still wont work :( -- View this message in context: http://r.789695.n4.nabble.com/Problem-in-installing-and-starting-Rattle-tp3042502p3043262.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.