I think I know what you are talking about... I have the same problem with mine... I'm not sure if it is a fuel delivery problem, but I think that it may be a transmission thing. Nothing to really worry about... have you tried:
1) Backing out of your garage, no gas, just gravity and your brakes
2) Putting the car in gear
3) Taking your foot off the gas and letting the car roll for a few feet
4) Pressing the gas
See if that does it. It may be the transmission doing something funky. Like I said, nothing to really worry about.
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Lorenzo Lopez
2004 Galaxy Silver Metallic
GTP / WS6