Who gets vapor lock?

I've had it for the past couple of months. I'll park my Jeep for an hour or 2 after getting it good and warm, then start it and drive off. After about a half block or so it will start starving for fuel for about 15 seconds then clear up completely. I'm thinking that it is because of the extra ethanol in the winter gas we get in Albuquerque. I'm suspecting that it is boiling in the fuel rail after sitting a while. Has anybody else had this happen?

No, but it makes sense. I just noticed for the first time when I bought gas yesterday that the old "Contains MTBE" sticker on the gas pump has a new sticker plastered over it: "Contains 10% Ethanol."