Changed the air filter or messed with air in-take tube lately? When I first bought my VX I changed the air filter, and the connector that plugs into the MAF pulled off. How, I don't know, but it started fine after I was done. Parked the car at my girlfriend's house, went to start and did the same thing you are describing. Did it again after I parked and re-started, found the sensor disconnected, plugged back in and everything was fine. Other than that, Fuel Filter, Fuel Pump issues?

Adam