S40: car dies when not moving

[radclijd]

My 2001 Volvo S40 experienced some problems yesterday. I was driving and when I came to a stop my car died, nothing was showing on the digital display. After 2-5 minutes the display activated and I was able to start the car. The same thing happened a second time while I was driving home. There were no problems with driving aside from the two times I came to a stop. We use ethanol in our gas here so I don't think there is water in the fuel system. Before my recent refueling I ran the tank to very near empty. I had the dealer replace the fuel filter about a month ago. Any ideas?
Thanks for the help!