In SX Microcontrollers, SX/B Compiler and SX-Key Tool, dave_f wrote: Hmmm, no, just uninstalled and reinstalled, I'm on v3.2.3, same as you, but that didn't seem to help. Doh! I wonder if it's a windows thing? I'm on XP on a quad 2.6GHz PC with 2GB RAM, would have thought I could program a microcontroller with that! The manual says to debug I need: SXkey Rev E or greater, SX chip 9825 or later, no external clock, sxkey connected and sx system powered. I have all of these (apart from the date code on the chip, how do i check that? Only just bought it though...) It does mention it may be interfered with by background software, I'll try that, but i'm not running much. any other ideas? Thanks, dave ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=252891#m253109 Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2008 (http://www.dotNetBB.com)