Ok, I've had EFI Live for awhile, but haven't had to use it for a year, or two because of being out of the country working. I have V1 Commercial Scan, and Tune with one license spot open, and I want to upgrade to COS 3 for my application. I'm following the tutorial, copy my existing tune, then open up the appropriate OS file for my application (04073003). Next, it says do a full re-flash to the PCM. But, since the COS file doesn't have any calibrations yet, the icons for the "read cal"; "write cal"; and "write full calibration data" aren't "live", meaning they don't highlight, or work. This is all without being plugged in to my PCM. Will these icons become "live" when I plug in, and turn key on, or am I doing something wrong? Thanks for the help.......................