I don't run Skype. I've already authorized the software (right click Open -> agree).

Actualy, MoI launches, I can see it in the Activity Monitor but without CPU % number, just CPU Time 0.17 / Threads 11. Then after a few seconds (perhaps a douzen) it disappear.

Correction: not the same behavior between v2.52 & v3.0 beta.

v2.52 behaves as explained above.

When v3.0 beta is launched, I can see 2 lines in the Activity Monitor, one Moi line with the bulb icon and one Moi line with the Terminal icon. The one with the bulb terminate a few seconds later while the one with the Terminal icon stays during several minutes, it shows CPU number (like 0.0, 0.1, 2.0, .., 0.0) and the Icon (Bulb) can be seen in the launch bar, but no interface is shown. Then after 2 or 3 minutes, the application terminates and disappear from the Activity Monitor. Never the GUI is shown.