Greetings R-ians: Not infrequently of late I get this error message when trying to save what I'm working on. Error in save.image("C:/Documents and Settings/ ... /.RData") : image could not be renamed and is left in C:/Documents and Settings/ ... /.RDataTmp10 If I try again, it almost always is successful. I don't recall having had this situation earlier, but it does seem more frequent lately. Have others observed this? Could it be because my workspace has become large? (Large being relative: 660KB) I'm using Version 2.3.1 (2006-06-01) running Windows XP on a Dell with 2Meg. Thanks. Charles Annis, P.E. PS - Yes, I have upgraded to R version 2.4.0 (2006-10-03) but do not want to change in the middle of a project. Charles.Annis at StatisticalEngineering.com phone: 561-352-9699 eFax:? 614-455-3265 http://www.StatisticalEngineering.com ?