Hi, I have a problem during choosing a Cran mirror, a&n error messages comes: > In open.connection (con, "r") connection to 'cran.r-project.org' impossible to prt 80. I don't know why? can you help me to choose a cran mirror. thanks for any suggestion. -- View this message in context: http://r.789695.n4.nabble.com/connection-problem-tp3549420p3549420.html Sent from the R help mailing list archive at Nabble.com.