I have been using AVRstudio 3.53 - JTAGICE - Imagecraft C compiler - and a mega128 with reasonably good results.
I downloaded studio 4.0 today. Nice screen format, installed fine.
At first I couldn't get it to accept my coef file but I found a magic switch in IC that seemed to fix that ... but I can't get 4.0 to connect with the JTAGICE. Same setup, serial port 1 , and I can switch right back to 3.53 and the ICE connects fine.
Any ideas ?