I am somewhat new to the BES world world and have some questions concerning our upgrade. We are currently running BES 3.6 for Exchange and want to upgrade to 4.1.2 for Exchange. At the same time, we'd like to move to a new server. I currently have 4.1.2 installed on the new server with all services stopped and disabled (as we only have one SRP). We want to test moving a few users over with defferent handheld versions to be sure that we are comfortable before doing the whole besmigration. I inquired with our vendor about a temporary SRP and I was given a trial version of 4.1.3 with a trial SRP and 20 user CAL. Is it possible to change the SRP and CAL on our disabled 4.1.2 install to use the new temp codes for testing, then go back to the good ones when migrating. (I can not figure out how to change them). If not, I can install the trial version on a test server to test a few user moves. Also, what options do I have to fall back if the real migration fails? Can I image the original server and restore or will that not work. Thanks in advance for your assistance.