if you're having problems in unlocking ai.kom
just right click then unlock..
wait until something pops up..
if a big one pops up, choose unlock all (if error, try to unlock again)
if no locking handle found, press (x) and try to unlock again
after clicking unlock all, unlock it again until it says "no locking handle found" bla bla..
(well this is what i do to make sure it works)
hope it helped