>Install MPLAB temporarily in a slower system (laptop or whatever) and >use it to upgrade your Picstart+. :) Yes I was considering that, it is just a pain to set it up again. I was also wondering if it might be the problem Roman goes on about with capacitors in the power supply. However I have two of these supplies and it happens with both. I opened one up and the capacitors do not look as though they have been extreme heat cycled. Still I guess the trick is to bite the bullet and deal with the other system again :{} But then I was already at the keyboard :) -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body