The settings will all be stored on the USB key, but USB installs are really built for licensed users. PingPlotter doesn't go into "USB-specific" mode until it sees the license file. If you've got it on your USB drive and you're carrying it around to multiple machines, you've probably moved beyond "evaluation" mode with PingPlotter. <img src="/forums/images/graemlins/smile.gif" alt="" />

- Pete

P.S. The USB documentation is in the standard help file too - the one that installs with PingPlotter. We're just overdue in getting the online version updated.