The single assignement works excellent for my R_2.12.1 and Tinn-R_2.3.7.1 in Windows 7 x64 on a limited user account (changes to profile.site has to be done with adm priv though). Thanks! -- View this message in context: http://r.789695.n4.nabble.com/Error-Running-TinnR-with-R-tp876004p3299344.html Sent from the R help mailing list archive at Nabble.com.