During the final mission when Yes-man is suposed to teleport you to the dam nothing happened. i walked all the way to the dam only to find an invisible wall all round it and was forced to walk back to Yes-man in vegas (for some reason not letting me fast travel even though outside). i then told Yes-man that i was not ready to complete mission fast travel was restored so i fast traveled back and did the mission all the way untill i put Yes-man in the computor and installed the override chip after this, nothing, telling me to go straight into the wall. i spent al this time getting to level 30 even on hardcoe just to not be able to do the last mission. i was wondering if anyone knew what happened or if it happened to any one else.