general problems of the 1999 Mitsubishi Eclipse

Recently purchased used vehicle for college student, with excellent service record. Has stalled with no warning while operating under normal driving conditions three times in the past 30 days (5/15/05-6/10/05). My son states he was taken totally by surprise by sudden failure. He was making a turn and realized that his power steering was not operating, only to notice that his vehicle was not on. He nearly lost control, but was able to "muscle" the car through the turn. Dealer has inspected the car, no problems found.

1st incident: April 2002: 1999 Mitsubishi Eclipse GS locks up (transmission) constantly jumps and the speedometer will shut off. This problem was checked by official mechanics of Mitsubishi and suposedly corrected by them as well. Today: March 12, 2005: on my home, the car locks up, jumps, but completely shuts off, luckily I was only a block away from my home when this happened. After several attempts I did start the car again but the spedometer is not responding and when shifting from neutral to drive or reverse the car jumps. Same problem all over again. Mitsubishi said the problem was corrected back in April of 2002, parts were replaced. This could have caused a car accident or injury if I were on a major highway.