I am running R on an XP machine. Lately I have been unable to start R in any mode without getting the 'Fatal Error: cannnot find unused tempdir name' message. After reading previous postings I went in and deleted all my Rtmp* directories in /documents and settings/USER/local/tmp which didn't help, I also uninstalled and reinstalled R to no avail. Running on a second machine I noticed that the last Rtmp* directory created before the error was Rtmp32767 which seems to imply some sort of counter has reached a 2 byte limit. Where is this counter, and how do I reset it? Thanks, in advance, for your help. Dr Christopher B. Ward -- This e-mail may contain confidential and/or privileged infor...{{dropped}}